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Subject: MA, Grade: HS
STAAR April 2013 EoC Algebra II
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Student name:
Author: Texas
District: Texas Released Tests
Printed: Thursday August 29, 2013
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Test Booklet
STAAR April 2013 EoC Algebra II
MA:HS
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STAAR ALGEBRA II REFERENCE MATERIALS
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STAAR April 2013 EoC Algebra II
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STAAR April 2013 EoC Algebra II
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STAAR April 2013 EoC Algebra II
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STAAR April 2013 EoC Algebra II
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STAAR April 2013 EoC Algebra II
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1 Some values for the function f (x) = logx are given in Table 1.
g (x) = 10x
g (x) =
10
x
g (x) = 10x
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g (x) = x10
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A
B
C
D
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-
Which function can generate all the values in Table 2?
2 For what value of c will the graphs of
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63
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A
B
C
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y = 2x2 − 36x + c and
y = 2 (x − 9)2 − 18 be the same?
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STAAR April 2013 EoC Algebra II
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3 The rectangular patio shown in the diagram below is enclosed on three sides by a fence.
B 2l + 2w ≤ 60
lw ≤ 400
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C l + 2w ≥ 60
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lw ≤ 400
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A l + 2w ≤ 60
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The area of this patio is no more than 400 square feet. The total length of the three sides of this fence is no
more than 60 feet. Which system of inequalities can be used to find values of l , the patio’s length, and w ,
the patio’s width, that will satisfy these conditions?
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lw ≥ 400
nd
D 2l + 2w ≥ 60
.c
lw ≥ 400
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STAAR April 2013 EoC Algebra II
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4 The graph of the quadratic function f is shown on the grid below.
What does the solution set for f (x) = 0 appear to be?
{12.5, −25}
{7.5, 17.5}
349
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a (x) = 2.09x +
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plus a one-time setup fee of $349. All taxes are
included. Which of the following functions models
a (x) , the average cost per book of printing x
cookbooks?
.c
{7.5 12.5, 17.5}
5 The cost of printing cookbooks is $2.09 per book
A
B
C
D
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{12.5}
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A
B
C
D
a (x) =
a (x) =
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a (x) =
2.09x + 349
x
2.09 + 349
2.09x
2.09x + 349
2.09x
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STAAR April 2013 EoC Algebra II
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6 Which graph best represents the parent function of y = 4(x + 3) ?
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7 There were 417 cell phones sold at an electronics
to
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B
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store in January. Since then, cell phone sales at
this store have increased at a rate of 3.75% per
month. At this rate of growth, which function can
be used to determine the monthly cell phone sales
m months after January?
p (m) = 417 (0.0375)m
p (m) = 417 (0.0375)(m + 1)
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p (m) = 417 (0.9625)(m + 1)
p
p (m) = 417 (1.0375)m
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A
B
C
D
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8 The graph of the function f is shown on the grid below.
Based on the graph, for what values of x is f (x) > 0 ?
All real numbers greater than 1
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All real numbers less than −2 or greater than 2
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nd
n . If
be represented by the equation y = n +
y = 20 , which of the following is true?
.c
All real numbers greater than −2 and less than 2
9 The sum of a number, n , and its square root
√ can
n = 16
n = 4
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A
B
C
D
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All real numbers greater than 0
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A
B
C
D
n = 16 and n = 25
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n = 4 and n = 5
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10 The graph of the function h was obtained from the graph of the function g using a composite transformation,
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as shown below.
h (x) = g (x + 4) − 2
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h (x) = g (x − 4) − 2
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h (x) = g (x + 4) + 2
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h (x) = g (x − 4) + 2
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A
B
C
D
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Which equation can be used to describe h (x) in terms of g (x) ?
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11 A craftsman wants to spend less than $300 on supplies for making bracelets and necklaces. Supplies for 1
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bracelet cost $4, and supplies for 1 necklace cost $9. This relationship is shown in the graph below.
25 bracelets and 20 necklaces
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contains the point (5, 13) ?
1
10
(x + 3)2 − 5
y =
1
10
(x − 3)2 − 5
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y =
nd
15 bracelets and 25 necklaces
.c
40 bracelets and 20 necklaces
12 Which function’s graph has a vertex at (3, 5) and
A
B
C
D
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30 bracelets and 15 necklaces
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A
B
C
D
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The craftsman wants to make at least 10 more bracelets than necklaces. Which of the following is a
reasonable solution?
y = 2 (x − 3)2 + 5
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y = 2 (x + 3)2 + 5
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STAAR April 2013 EoC Algebra II
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13 What value of p makes the equation below true?
= 5
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19
4p−1
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Answer:
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STAAR April 2013 EoC Algebra II
2
y2
b2
= 1 is graphed below.
x2
b2
+
y2
a2
= 1?
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If the values of a and b remain the same, which graph best represents
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14 An equation in the form xa2 +
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D
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B
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STAAR April 2013 EoC Algebra II
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15 An object is launched into the air. The table below shows the object’s height above the ground at various
times.
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Height vs. Time
95 m
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10 m
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55 m
m
110 m
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A
B
C
D
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Based on the data in the table, which of the following is closest to the object’s height above the ground 9
seconds after being launched?
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16 A quadratic function is graphed on the grid below.
2
17 Which two transformations
√ can be used to obtain
18 Which of the following is a solution to
10x2 − x = 3 ?
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the graph of g √
(x) = − x − c from the graph
of f (x) = − x if c > 0 ?
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A
B
C
D
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If this function is written in the form y = a (x − h)2 + k , what is the value of a ?
A A translation to the right c units followed by a
reflection across the x -axis
Sa
B A translation to the left c units followed by a
reflection across the x -axis
A − 15
B 35
C − 32
D 12
C A translation to the right c units followed by a
reflection across the y -axis
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reflection across the y -axis
p
D A translation to the left c units followed by a
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19 What is the x -value of the solution to the system of equations below?
x + y + z = 8
x + 2y = 6
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Answer:
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y + z = 4
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STAAR April 2013 EoC Algebra II
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20 The function below can be used to model the area
of a rectangle in square inches, A , if the rectangle
has a perimeter of 72 inches and a width of w
inches.
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A = 36w − w2
h−1 (x) = 3(2x)
h−1 (x) = 2 (3)x
h−1 (x) = 2 (logx 3)
m
h−1 (x) = log3 (2x)
log3 (x)
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A
B
C
D
1
2
to
21 What is the inverse of h (x) =
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0 < w < 36
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0 < w < 18
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0 < w < 72
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0 < w < 6
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A
B
C
D
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In this situation, which of the following best
describes the domain of the function?
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22 A table of values for the quadratic function g is shown below.
Which of the following statements about the graph of g are true?
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I. The graph has a line of symmetry at x = 7 .
II. The graph has a y -intercept at (0, −40) .
III. The graph has an x -intercept at (4, 0) .
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I and II only
I, II, III, and IV
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I, II, and III only
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III and IV only
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D
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IV. The graph has a vertex at (6, 8) .
23 The product of 2 consecutive odd integers is 483.
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If x represents the smaller integer, which equation
can be used to find both integers?
x (x + 2) = 483
x (x + 1) = 483
x (x + 3) = 483
(x + 1) (x + 2) = 483
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A
B
C
D
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7x − 22
4
, what is the corresponding element in the range?
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24 If 5 is an element in the domain of f (x) =
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Answer:
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STAAR April 2013 EoC Algebra II
MA:HS
25 The roots of a quadratic equation are given by the
expression below.
√
−25 ± −100
25
−1 ± 2i
−25 ±
2i
5
−25 ± 2i
-
2i
5
−1 ±
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A
B
C
D
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Which of the following is an equivalent expression?
26 An antibiotic is introduced into a colony of 12,000
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bacteria during a laboratory experiment. The
function below can be used to model the number
of bacteria in the colony after m minutes.
m
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n (m) = 12, 000 (0.851) 10
8 min
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25 min
nd
11 min
42 min
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A
B
C
D
m
Which value is closest to the amount of time
needed for the population of the colony to drop to
8,000 bacteria?
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27 The table below shows values of a quadratic function g .
−5 < x < −4
−2 < x < −1
tance in ohms, R , when a fixed 9 -ohm resistor
is connected in parallel with a variable resistor of
x ohms.
9x
9+x
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Which value of x is closest to the number of ohms
needed in the variable resistor for there to be an
equivalent resistance, R , of 6.4 ohms?
15.4
57.6
g being translated right 14 units and down 12
units.
B The graph of h is the result of the graph of
g being translated left 14 units and down 12
units.
C The graph of h is the result of the graph of g
being translated right 14 units and up 12 units.
D The graph of h is the result of the graph of g
being translated left 14 units and up 12 units.
p
3.7
22.2
A The graph of h is the result of the graph of
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A
B
C
D
if h (x) = g (x + 14) − 12 ?
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R =
29 For the functions h and g , which statement is true
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28 The given function models the equivalent resis-
nd
2 < x < 3
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−1 < x < 1
m
A
B
C
D
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Based on the table, in which interval can a solution to g (x) = 0 be found?
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30 The graph of the exponential function f is shown
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on the grid below.
m
x > 0
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x > −2
nd
∞ < x < −2
.c
−2 < x < 2
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A
B
C
D
to
For what values of x is f (x) > 16 ?
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Answer:
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31 What value of n makes 10 − 3n = 7 true?
32 Which equation has the same graph as
y = (2x − 1)2 + 13
y = 2 (x − 1)2 + 9
y = 2 (x − 1)2 + 13
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y = (2x − 1)2 + 9
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A
B
C
D
p
2x2 − 4x − y + 11 = 0 ?
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STAAR April 2013 EoC Algebra II
MA:HS
π
4
times the square of the radius, r . Which graph represents this relationship?
C
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D
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B
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The area, A , of the sector is
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33 A sector of a circle is shown below.
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MA:HS
34 The hypotenuse of a right triangle is 17 inches
2x + y = 1
C x + y = 17
y = 2x − 1
D x + y = 17
2x + y = 1
-
B x2 + y2 = 289
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y = 2x − 1
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A x2 + y2 = 289
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long. A leg of this triangle, y , is 1 inch less than
twice the length of the other leg, x . Which system
of equations can be used to determine the lengths
of the 2 legs of this right triangle in inches?
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m
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√ nd
A −3 ± i 14
√ B −3 ± 5
√ C 3 ± i 14
√ D 3 ± i 5
to
35 What is the solution set for x2 + 4 = 6x ?
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36 A plane intersects a double cone as shown below.
Parabola
to
37 Each year an architecture firm employs senior
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interns and junior interns. Senior interns receive
$400 per week, and junior interns receive $300 per
week. This year a minimum of 7 but no more
than 13 interns will be hired. The amount spent
per week on interns cannot exceed $4,000. Which
statement about this situation is not true?
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Hyperbola
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Ellipse
nd
Circle
m
A
B
C
D
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What conic section is created by this intersection?
A The architecture firm can employ 13 junior
interns.
B The architecture firm can employ 4 senior
interns and 7 junior interns.
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C If both types of interns are hired, the firm
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will spend a minimum of $2,200 per week on
interns.
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D If both types of interns are hired, the firm
will spend a maximum of $3,800 per week on
interns.
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MA:HS
38 Which table contains only values in the solution set for y ≤
A
√
25 − x + 11 ?
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C
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= 9
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A − 12 , 21
B − 21 , 1
C {−8, 16}
D {−8, −16}
1 x
4
.c
3 1 −
nd
equation?
to
39 What is the solution set for the following
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40 For what value of b will f (x) = x2 + bx + 400 have −20 as its only zero?
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Answer:
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STAAR April 2013 EoC Algebra II
MA:HS
41 Which function is equivalent to its inverse?
f (x) =
g (x) =
2x − 1
2
3−x
3
h (x) = 7 − x
f (x) = x − 4
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A
B
C
D
42 Which of the following gives the equations for all
x = −2 and x = 5
x = −8 and x = 5
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x = −5 and x = 8
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x = −4
to
A
B
C
D
-
the vertical asymptotes of the graph of
+4
f (x) = (x +x8)(x
− 5)
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All real numbers
All real numbers less than or equal to 1
nd
All real numbers greater than or equal to 1
.c
All real numbers greater than or equal to 0
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A
B
C
D
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43 What is the range of f (x) = x2 + 1 ?
44 Which of the following ordered pairs is a solution
to the system of inequalities given below?
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x + y < 4
x2 + y < 8
(1, 5)
(−4, −1)
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(4, −1)
p
(1, 2)
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A
B
C
D
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STAAR April 2013 EoC Algebra II
MA:HS
45 A rectangular parking lot measures 150 feet by 230 feet. The owner of the parking lot will expand the lot’s
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size by adding x feet and 2x feet to its dimensions, as shown below.
(230 + 2x) (150 + x) ≤ 40, 000
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(230 + x) (150 + 2x) ≤ 40, 000
(230 + 2x) (150 + x) ≥ 40, 000
(230 + x) (150 + 2x) ≥ 40, 000
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A
B
C
D
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If the total area of the parking lot cannot exceed 40,000 square feet, which inequality can be used to find all
possible values of x ?
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46 Which type of transformation can be used to
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Vertical shift down
nd
Vertical shrink
Vertical shift up
Vertical stretch
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Sa
A
B
C
D
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obtain the graph of g (x) = 4 (2x ) from the graph
of f (x) = 2x ?
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STAAR April 2013 EoC Algebra II
MA:HS
2
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48 A function is graphed below.
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7
nd
4
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6
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A
B
C
D
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47 What is the greatest value in the domain of the function graphed below?
A
B
C
D
y = − (x + 1)2 + 4
y = − (x − 1)2 + 4
y = −x2 + 4x + 3
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Which function is best represented by this graph?
y = −x2 − 4x + 3
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STAAR April 2013 EoC Algebra II
MA:HS
49 The average speed of sound in air at t degrees
Celsius can be found using the function below. The
speed, s , is measured in meters per second.
√
s = 20.05 t + 273.15
43◦ C
309◦ C
-
503◦ C
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76◦ C
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nd
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m
to
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A
B
C
D
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If sound is traveling in air at an average speed
of 356.5 meters per second, which temperature is
closest to the value of t ?
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STAAR April 2013 EoC Algebra II
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50
nd
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Week 3
Week 5
Week 6
Sa
A
B
C
D
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A factory began producing new parts. Data were collected on the number of defective parts per 10,000 parts
produced. The graph shown displays some of the data for the first 10 weeks of production. Based on the
graph, during which week were approximately 130 defective parts per 10,000 produced?
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Week 8
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