Algebra II Semester 2 Practice Final _18 Pages

ID: A
3
120. Simplify 162a 13 b 6
positive.
a. 3a 4 3
b a
b. 6a 4 b 2 3
3a
c. 3a 4 b 2 3
6a
d. none of these
. Assume that all variables are
121. Write an exponential function y = ab x for a graph
that includes (0, 4) and (1, 14).
a. y = 7(2) x
b. y = 4(3.5) x
c. y = 2(7) x
d. y = 3.5(4) x
125. Solve the equation. Check the solution.
k + 5
k + 8 = k + 4
k − 5
a. − 19
4
b. − 7 4
c. − 7 12
d.
7
4
122. Simplify.
1
10
3
⋅ 100
a. 10
b. 10
c. 100
3
d. 10
1
3
123. Write a polynomial function in standard form with
zeros at –5, –2, and –4.
a. f(x) = x 3 + 40x 2 + 11x + 38
b. f(x) = x 3 + 11x 2 + 38x + 13
c. f(x) = x 3 + 11x 2 + 38x + 40
d. f(x) = x 3 + 14x 2 + 240x + 13
124. Find the inverse of y = 6x 2 − 2.
a. y 2 = x − 2
6
b. y =±
c. x =
d. y =±
x − 2
6
y + 2
6
x + 2
6
18