Find Inverse Functions and Relations

When finding the inverse of a relation, 
1st you replace f(x) with y
2nd switch the x's and y's
What do you do next?

• solve for y

• replace y with f^-1(x)

• solve for x

• find the greatest common factor

Find the inverse of f(x) = x² - 5

• f^-1(x) = √(x) + 5

• f^-1(x) = ∛(x-5)

• f^-1(x) =√(x+5)

• f^-1(x) = x² - 5

Are the graphs inverses?

• yes

• no

What is the DOMAIN of the INVERSE function?

• <-7, -2, -1, 1, 4>

• <-6, -3, -2, 0, 3>

• <-3, 0, 2, 3, 6>

• <-4, -1, 1, 2, 7>

Are the relations inverses?

• yes

• no

Are the relations inverses?

• yes

• no

Are the relations inverses?

• yes

• no

Are the graphs inverses?

• yes

• no

Are the graphs inverses?

• yes

• no

Are the graphs inverses?

• yes

• no