April 20, Algebra 2

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

• f(x)

• f^-1(x)

• y

• g^-1(x)

What is the first step in finding the equation of the inverse of a function?

• get x by itself

• switch x and y

• solve for y

• write the function in inverse function notation

What is the inverse of the function
f(x) = 2x + 4   ?

• f^-1(x) = 4(x -2)

• f^-1(x) = (x-4)/2

• f^-1(x) = x/2 - 4

• f^-1(x) = x/4 + 2

Are these functions inverses of each other?

• Yes

• No

If the equation of f(x) goes through (1, 4) and (4, 6), what points does f^-1(x) go through?

• (1, 4) and (4, 6)

• (-4, -1) and (-6, -4)

• (-1, -4) and (-4, -6)

• (4, 1) and (6, 4)

• A

• B

• C

• D

• 9

• 3

• 5

• √15

I learn Algebra 2..........

• better in school

• better at home

• better by googling

• better one on one