13 Free Questions on the next CSTs
How to rob from the rich (test makers)
… and give to the poor (your students,
who might score BASIC otherwise!)
Need 38
correct answers
for “proficient”
Ye Olde
Let x = Zero strategy
9
1
3 1
1
3  0  3
4  0  1
3  3
3  0  3
0 1
1
Standard 12 : 3 questions
41
14
6 x  x  12 24  2  12

Simplify : 2
3x  11x  20 12  22  20 14
2
Let x = 2
2x  3
A)
x5
2x  3
B)
x5
2x  3  4  3
C)
x 5 25
2x  3 4  3
D)

x 5 25
0  2  0  1  14x
Technique will not
usually work for
equations
Or when
denominator = 0.
Standard 4 : 3 questions
5
8   2  10
Let x = 2
16  4  8   4  6  2  12
12 10  10  12
24
Which fraction equals the product
 5   3  15 3

   
 2   5  10 2
43
7  1
4  2
Technique will not
usually work when
denominator = 0.
Let x = 1
7  3
4  0
7  2
4  3
7  7 1 4

4  8 1 2 1
7  0
7 3 21
4  3


6 4
24
Standard
13 : 4 questions
42
12 x  20 x  3 2 x  5 x  3
3
3



2
2
x  25
5 x  27 x  10 25 10
2
2
6x 1 1
A)
x  5 5
6 x  1 5 x  2  2

B)
 x  5  x  1 5
6 x  1 x  5  5

C)
 x  5  x  1 5
D)
 6 x  1 5 x  2 
 x  5  x  1
2
5
3 10

25 3
2
5
13 Free Questions on the CSTs
How to rob from the rich (test makers)
… and give to the poor (your students,
who might score BASIC otherwise!)
Ye Olde
Graphing strategy
The graph could represent which equation?
y
Slope is positive
x y-intercept is
negative
[A] y  2 x  1
[C] y  2 x
[B] y  2 x  1
[D] y  2 x  1
Standard 6: 4 questions
Ye Olde
Graphing strategy
The graph could represent which equation?
y
Slope is negative
x y-intercept is
negative
[A] y  2 x  1
[C] y  2 x
[B] y  2 x  1
[D] y  2 x  1
Standard 6: 4 questions
Which graph shows this linear equation?
y  3x  4
(A)
y
(B)
y
x
(C)
x
(D)
y
x
y
x
The graph represents which inequality?
“<“ dotted
“” Solid line
Check (0,0)
y  2x 1
2
[A] y  x  2
3
2
y

x

2
[B]
3
2
[C] y  x  2
3
2
[D] y  x  2
3
Standard 9: 5 questions
Which graph shows this linear inequality?
y  2 x  3
0  0  3???
1
0   0  1???
2
0  1
15.
Which graph represents the solution to the
system
2x  y 1
A
0  0 1?
C
(0,4)
(0,0)
B
D
2 x  5 y  10
0  0  10?
C
21.
For what values
of x is y = 0?
36.
Teach: Negative causes the
parabola to open downward.
Which is the graph of
When x = 0
y  3x  2
2
A
D
B
C
Standard 21: 3 questions
Which equation best represents the function graphed?
2
A) y  3 x  4
B) y  3 x  4
2
C) y  3 x  4
2
D ) y  3 x  4
2
Which equation best represents the function graphed?
2
A) y  3 x  4
B) y  3 x  4
2
C) y  3 x  4
2
D ) y  3 x  4
2
Ye Olde
Other strategy
Work Backwards
Work backwards
FOIL
27.
x  x  42
2
x  x  42  0
2
 x  6 x  7  0
Work
backwards
28.
x  6 x  16  0
2
 x  2 x  8  0
Work
backwards
30.
Ye Olde
Other strategy
Work Backwards
“Back-2” List on scratch paper.
Do NOT write on the test, under penalty of
Eliminate all the weird choices
This presentation is a PowerPoint file and can be
downloaded in its entirety from my website at:
http://edtech.nmusd.us:8080/
Select “M”, then Charles Mabry, then the FOCUS tab on
the left.
There is also a Powerpoint containing all of the released
questions, and a “FourSquare” game for teaching the
graphing strategy.
My email is: [email protected]