Precalculus Inverse

Find g(f(-2))

• -18

• -2

• 1

• 9

Answer explanation

To find g(f(-2)), first find f(-2) which equals 1. Then plug 1 into g(x) which gives -2. Therefore, g(f(-2)) = -2.

Mathematical Equivalence

ON

Find the inverse of the following function:

Mathematical Equivalence

ON

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Are the blue and red graphs inverse functions?

• yes

• no

• no way to tell

Was the inverse function found correctly?

• no,

• yes

Is the inverse function found correctly?

• yes

• no

Are these the graphs of two inverse functions?

• Yes

• No

• No way to tell

An ​ (a)   takes a previously found result ( a y value) and returns it to its original value (x value). This means you are ​ (b)   a function

• function

• inverse

• 2 or more

• undoing