Finding the Inverse of a Function

If f(x) = 3x-9, what is f ^-1(12)?

• 25

• 9

• 11

• 7

In an inverse function, the _____ and _______ are switched from the original

• f(x) and g(x)

• input and output

• positives and negatives

• slope and intercept

What's the name of the inverse of g(x)?

• f(x)

• f^-1(x)

• y

• g^-1(x)

Given f(x) = x+3, find f^-1(-2).

• -1

• 1

• 5

• -5

Are the following inverses of each other?

• True

• False

The inverse has been reflected over which line?

• y = x

• y =1

• y = 0

• y = x + 1

Which graph shows the inverse of the graph above?

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Q1. Is the sky blue?

• TRUE

• FALSE

Use the horizontal line test to determine if the function has an inverse function.

• yes

• no

Graph the inverse

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