Unit 5 Part 2
Exponential Functions Review
Name: _______________________________Block:_____
1. Make a table for the function using the given domain.
Then graph the function using the ordered pairs from
the table.
𝑓(𝑥) = 3(2)𝑥 domain = {-2, -1, 0, 1, 2}
X
Draw a line from the function to the matching
graph. Label the end behavior for each function.
2. 𝑓(𝑥) = 5(2)𝑥
Y
3. 𝑓(𝑥) = −2(3)𝑥
1
4. 𝑓(𝑥) = 3(2)𝑥
1 𝑥
5. Graph the function 𝑓(𝑥) = 4 (2)
What is a? _______ What is b? ________ What is the y-intercept? ________
D. What is the domain? _________________ Range?___________
E. The horizontal asymptote is: ____________
G. What is the end behavior as x approaches + and – infinity?
6. Write an equation for the function that includes
the points (3, 12) and (4, 24)
8. Solve for x. 5(2)x  80
7. Write an equation for the function that includes
the points (-2, 53) and (-1, 530)
4
x
64
9. Solve for x.   
125
5
11. The value of a textbook is $69 and decreases
at a rate of 15% per year. What is the value of the
textbook after 11 years?
x
2 1
1
10. Solve for x.   
32
6
12. The value of a boat is depreciating at a rate
of 7% per year. In 2004, the boat was worth
$192,000. Find the worth of the boat in 2013.
13. A painting is sold for $1800, and its value
increases by 11% each year after it is sold. Find the
value of the painting in 30 years.
14. Does the following table represent an
exponential function? Explain.
15. Which of these sets of ordered pairs satisfies an
exponential equation?
A. {(-1, 0.4) , (0, 2) , (1, 10) , (2, 50)}
X
Y
0
5
1
15
2
45
3
135
B. {(-1, 4) , (0, 1) , (1, 4) , (2, 13)}
C. {(-2, 8) , (-1,-3) , (0, 2) , (1, 7)}
D. {(1, 1) , (2, 0.5) , (3, 0.3333) , (4, 0.25)}
16. Does the following table represent an
exponential function? Explain.
X
Y
5
10
7
15
9
20
17. (−2𝑘 −2 )2
18.
11
25
19. Find the Perimeter and Area of a rectangle
with sides measuring 5x2y and 6xy2.
25𝑥 8
?
5𝑥 4
20. ( 9𝑦 12 ) = 3𝑦 6
6
24𝑥 2
∙ 𝑥18