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Algebra 2B Logs/Exponentials
Test Description: Test Review
Instructions: Answer all questions to get your test result.
1) Evaluate: log 100
A
10
B
3
C
1
D
2
2) Evaluate: e^4.5
A
90.017
B
e
C
1.504
D
4.5
3) Describe the transformation: f(x) = log (x + 4)
A
right 4
B
down 4
C
left 4
D
up 4
4) Describe the transformation: f(x) = -2^x
A
Reflects over y-axis
B
down 1
C
left 1
D
Reflects over x-axis
5) describe the transformation: f(x) = logx - 5
A
right 5
B
left 5
C
down 5
D
up 5
6) Use change of base: log (base 3) 14
A
1.146
B
2.402
C
0.416
D
0.477
7) What is the base of log x?
A
1
B
0
C
e
D
10
8) What is the base of ln x?
A
e
B
1
C
10
D
0
9) Use properties to write as a single log: log 3 + log x
A
log 3 - x
B
log 3 + x
C
log 3x
D
log (3/x)
10) Use properties to write as a single log: log 20 - log 4
A
log 16
B
log 24
C
log 5
D
log 80
11) Solve: log 2x = log 18
A
x = 18
B
x = 9
C
x = 2
D
x = log18
12) Solve: 2^x = 2^ 15
A
x = 7.5
B
x = 2
C
x = 13
D
x = 15
*select an answer for all questions
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