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Algebra 2 Chapter 7 Exponential and Logarithmic Functions

Total questions: 35

Worksheet time: 1hrs 2mins

Name
Class
Date
1.

Which behavior does the exponential function y = 4x describe?

a)

exponential decay

b)

exponential growth

2.

What behavior does the exponential function y = (1/5)x describe?

a)

Exponential Decay

b)

Exponential Growth

3.

For the function y = abx, which value for b represents exponential decay?

a)

0 < b < 1

b)

b > 1

4.

For the function y = abx, which value for b represents exponential growth?

a)

0 < b < 1

b)

b > 1

5.

What is the y-intercept of y = 3(4)x?

a)

4

b)

3

c)

1

d)

-3

6.

What is the y-intercept of y = 5(3)x + 2

a)

3

b)

2

c)

7

d)

5

7.

Using the formula: A(t) = a(1 + r)t

a)

$1,562.50

b)

$735.10

c)

$1340.10

8.

How does the graph of the given function compare to the graph of the parent function?

y=4(x+2)

a)

Up 2 units

b)

Down 2 units

c)

Left 2 units

d)

Right 2 units

9.

How does the graph of the given function compare to the graph of the parent function?

y=5(0.25)x+5

a)

Up 5 units, compressed by factor of 5

b)

Up 5 units, stretched by factor of 5

c)

Down 5 units, compressed by factor of 5

d)

Down 5 units, stretched by a factor of 5

10.

Identify the transformation performed on the parent function.

y=-(0.3)x-2

a)

Reflect across y-axis and left 2 units

b)

Reflect across x-axis and down 2 units

c)

Reflect across x-axis and right 2 units

d)

Reflect across y-axis and right 2 units

11.

What is the logarithmic form of the following equation?

36=62

a)

log366 = 2

b)

log26 = 36

c)

log62 = 36

d)

log636 = 2

12.

What is the logarithmic form of the following equation?

8/27=(2/3)3

a)

log3(8/27) = 2/3

b)

log3(2/3)= 8/27

c)

log(2/3)3 = 8/27

d)

log(2/3)(8/27) = 3

13.

What is the value of log832?

a)

5/3

b)

3/5

c)

3

d)

5

14.

What is the value of log28?

a)

1/3

b)

3

c)

2

d)

4

15.

How does the graph of the given function compare to the parent function?

y=log5x+1

a)

Moves 1 unit up

b)

Moves 1 unit left

c)

Moves 1 unit right

d)

Moves 1 unit down

16.

How does the graph of the given function compare to the parent function?

y=log4(x+2)

a)

Moves 2 units down

b)

Moves 2 unit right

c)

Moves 2 units up

d)

Moves 2 units left

17.

Find the inverse of the given function.

y=log4x

a)

y = 4x

b)

x = 4y

c)

y = x4

18.

Find the inverse of the given function.

y=log22x

a)

x = 2y

b)

y = 1x

c)

y = (2x)/2

d)

y = 2

19.

Find the inverse of the given function.

y=log(x+1)

a)

y = 10x + 1

b)

y = 10x - 1

c)

y = 10x + 1

d)

y = 10x + 1

20.

Write the expression as a single logarithm.

log432-log42

a)

2

b)

log430

c)

log416

d)

4

21.

Write the expression as a single logarithm.

log8-2log6+log3

a)

log(2/3)

b)

log(3/4)

c)

log(-9)

d)

log(1)

22.

Expand the logarithm.

logx3y5

a)

15log(xy)

b)

3log(x) + 5log(y)

c)

log(x3 + y5)

d)

15xy

23.

Expand the logarithm.

log5(r/s)

a)

log5(r) - log5(s)

b)

r(log5(s))

c)

log5(r - s)

d)

5log(r) - 5log(s)

24.

Simplify the expression.

a)

3

b)

x + 1

c)

-1

d)

1

25.

Solve the equation.

2x=8

a)

4

b)

2

c)

5

d)

3

26.

Solve the equation.

25x+1=32

a)

5

b)

4/5

c)

6/5

d)

0

27.

Solve the equation.

4x=19

a)

x=log194

b)

x=log419

c)

19/4

d)

4/19

28.

Solve the equation.

92y=66

a)

y=(log966)/2

b)

y=log933

c)

y=log366

d)

y=-(log966)/2

29.

Solve the equation.

log2x=-1

a)

-1/2

b)

5

c)

0.1

d)

0.05

30.

Solve the equation.

2logx+log4=2

a)

5

b)

1/2

c)

25

d)

10

31.

Simplify.

10logx

a)

10

b)

1

c)

x

d)

-1

32.

Simplify.

log416x

a)

2

b)

2x

c)

x

d)

4x

33.

Simplify.

eln5

a)

e

b)

ln5

c)

1

d)

5

34.

Simplify

e-3 x e-8

a)

1/e-11

b)

1/e11

c)

e-24

d)

e11

35.

Simplify.

28e3x/21e-x

a)

28/21e4x

b)

4/3e-4x

c)

3/4e4x

d)

4/3e4x