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5.1-5.3 Logs and Exponentials

Total questions: 10

Worksheet time: 30mins

Name
Class
Date
1.

Evaluate: log31

a)

1

b)

0

c)

3

d)

e

2.

Which equation is the inverse of the equation above?

a)
b)
c)
d)
3.

Which graph best represents the following logarithmic function?
y=log4xy=\log_4x  

a)
b)
c)
d)
4.

Rewrite log28 = 3 in exponential form

a)

28 = 3

b)

23 = 8

c)

32 = 8

d)

83 = 2

5.
Evaluate.
log381
a)
4
b)
1/4
c)
-4
d)
-1/4
6.
Classify the following graph.
a)
Exponential Growth
b)
Exponential Decay
c)
Logarithmic
7.

Using the parent function  y=log3xy=\log_3x   what would the graph of  y=log3(x+5)y=\log_3\left(x+5\right)   look like?

a)

Horizontal shift left 5 units

b)

Horizontal shift right 5 units

c)

Vertical shift up 5 units

d)

Vertical shift down 5 units

8.
Write the exponential equation as a logarithm
63=216
a)
log6(3) = 216
b)
log3(6) = 216
c)
log6(216)=3
d)
log216(6)=3
9.

Rewrite as an exponential: log7(149)=2\log_7\left(\frac{1}{49}\right)=-2  

a)

7149=27^{\frac{1}{49}}=-2  

b)

(149)2=7\left(\frac{1}{49}\right)^{-2}=7  

c)

72=1497^{-2}=\frac{1}{49}  

d)

(2)7=149\left(-2\right)^7=\frac{1}{49}  

10.
Evaluate log7 343
a)
3
b)
49
c)
7
d)
1