Graphing Logarithmic Functions Answers

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1
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What is the inverse of the logarithmic function f(x) = log2x?

A
f –1(x) = x2
B
f –1(x) = 2x
C
f –1(x) = logx2
D
f –1(x) =
2
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If you are given the graph of g, how could you graphf(x) = log x + 3?For each point on the graph of g,

A
add 3 to the x-coordinate.
B
add 3 to the y-coordinate.
C
subtract 3 from the x-coordinate.
D
subtract 3 from the y-coordinate.
3

What happens to the value of f(x) = log4x as x approaches 0 from the right?

A
f(x) approaches negative infinity
B
f(x) approaches 0
C
f(x) approaches infinity

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