2
1) If f(x) = 5x
+ 2x, what is the value of f(2)? 2) What is the quadratic equation for the following roots 5 and 4 2
F
y=x
– x + 20 2
G
y=x
+ x + 20 2
H
y=x
+ x – 20 2
J
y=x
– x – 20 2
3) Find the roots for this quadratic y=2x
+ 6x + 8? 2
4) If the domain of f(x) = x
– 9 is {1, 0, 1} what is the range? 5) What is the solution for 2|x + 5| + 6 = 12? 6) Write the equation of the graph given and where is it increasing and decreasing? 7) Which equation represents the translation down 5 units from Y = |x – 11 |. Also sketch the graph and what is it’s domain and range? F
y = | x – 6| G
y = | x – 11 | + 5 H
y = | x – 11 | 5 J
y = | x – 5 | 11 8
12
8) Which is of these is the correct factored form of 100x
–324y
a.
b.
c.
d.
8
12
4(25x
–81y
) 4
6
4
6
(10x
–18y
) (10x
+18y
) 4
62
4(5x
–9y
)
4
6
4
6
4(5x
–9y
) (5x
+9y
) 2
9) Factor 4x
-10x-24
2
10) Find the roots by factoring 2x
-21x-6=5
11) Simplify √− 300
2
12) Find the roots for 2(x-5)
-7=-33
13) 73|4
x
+7|<
2
. Find all values of
x,
which make this inequality true. a. {
x
|
x<
2.5
or
x>
1} b. {
x
|
x<
2.5
or
x>
2.5} c. {
x
|
x<
1
or
x>
1} d. {
x
|
x<
1
or
x>
2.5} 14) Solve for n: 3|3x + 4| − 7 = 5 (A) x= 89 or x= − 29 (B)x=0 or x =− 2 23 (C) x= 89 or x =− 2 23
15) Solve for x and graph the solutions (D) x = 89 or x=0 16) Where is the function increasing? (A) {oo<x<1} (B) {oo<x<2} (C) {1<x<oo} (D) {2<x<oo} 17) In the graph above what is the domain and range and identify the parent
function.
18) Write the equation of the parabola in vertex form. 2
(A) y=3(x2)
+2 2
(B) y=3(x2)
2 2
(C) y=3(x+2)
+2 2
(D) y= 3(x+2)
2 2
(E) y= 3(x+2)
2 2
19) Given the graph y=3x
gets translated 5 units left and 10 units down write the equation of the new function. 2
20) Simplify (45i)
21) What is the difference of (67i) and (1910i) 22) What are the zeros of this function? And where is the graph increasing and decreasing?
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