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Logarithmic Transformations

Total questions: 14

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
Logarithmic functions are the inverse of...
a)
Linear Functions
b)
Exponential Functions 
c)
Quadratic Functions 
d)
Polynomial Functions 
2.

Select all the transformations that apply.

y = -2 log 1/2 x

a)

Vertical stretch by 2

b)

Vertical shrink by 1/2

c)

Reflection across the y-axis

d)

Reflection across the x-axis

3.
Match the graph with its equation
a)
y = log5 (x + 1) + 1 
b)
y = log5 (x - 1) + 1 
c)
y = log5 (x2) + 1 
d)
y = log5 (x)-1
4.
What is the Range?
a)
y > 0
b)
All Real Numbers
c)
y > 1
d)
y < 1
5.
What is the equation of the asymptote?
a)
x = -3
b)
x=5
c)
y= -3
d)
y=5
6.

Describe the graph of f(x) = log x changed to

f(x) = 3log(x + 1) - 5

a)

vertical stretch by 3 and shift right 1 and 5 units down

b)

vertical stretch by 3 and shift left 1 and 5 units down

c)

vertical compress by 3 and shift right 1 and 5 units down

d)

vertical compress by 3 and shift left 1 and 5 units down

7.

Select all the transformations that apply.

y = log 5 (x + 1) +1

a)

Horizontal shift left 1

b)

Horizontal shift right 1

c)

Vertical shift up 1

d)

Vertical shift down 1

8.
Find the domain and range of:
f(x) = log2(x)
a)
D: all real numbers
R: y > 0
b)
Domain: all real numbers
Range: all real numbers
c)
Domain: x > 0
Range: all real numbers
d)
Domain: all real numbers
Range: y < 0
9.

The asymptote of y = log2(x + 2) will shift...

a)

right two to x = 2

b)

left two to x = -2

c)

not shift and remain x = 0

10.

The asymptote of y = log2x + 1 will shift...

a)

right one to x = 1

b)

left one to x = -1

c)

not shift at all and remain x = 0

11.
Classify the following graph.
a)
Exponential Growth
b)
Exponential Decay
c)
Logarithmic
12.
Which has a vertical asymptote?
a)
Exponential
b)
Logarithmic
c)
Both
13.
What are the transformations of this graph?
a)
Right 1 Up 5
b)
Right 1 Down 5
c)
Left 1 Up 5
d)
Left 1 Down 5
14.

Describe the transformations of f(x)= -log2(x+1)

a)

left one & y-axis reflection

b)

right one & y-axis reflection

c)

left one & x-axis reflection

d)

right one & x-axis reflection