Inverse Functions

Multiple Choice

Is the inverse function found correctly?

• yes

• no

Multiple Choice

If $$f(x) = 3x - 4$$ , what is the inverse function $$f^{-1}(x)$$ ?

• $$f^{-1}(x) = \frac{x + 4}{3}$$

• $$f^{-1}(x) = \frac{x - 4}{3}$$

• $$f^{-1}(x) = 3x + 4$$

• $$f^{-1}(x) = \frac{3}{x} + 4$$

Multiple Choice

Are the following inverses of each other?

• True

• False

Multiple Choice

are these inverse functions?

• no

• yes

• no way to tell

Multiple Choice

If $$f(x) = 5x - 7$$ , what is the value of $$f^{-1}(12)$$ ?

• 3

• 4

• 5

• 6