Compose Functions to See if They Are Inverses

Find the inverse of the function
f(x) = 3x − 5

• f^-1(x)=3x +5

• f^-1(x)=(x+5)/3

• f^-1(x)=3y-5

• f^-1(x)=3y+5

Tags

CCSS.HSF-BF.B.4A

Are these inverse functions?

• no

• yes

• no way to tell

Tags

CCSS.HSF-BF.B.4B

If f and g are inverse functions, and
f(2) = -1     g(1) = -2     f(1) = -2, 
then which of the following MUST be true?

• g(-2) = 0

• g(1) = 1

• g(-2) = -3

• g(-1) = 2

Tags

CCSS.HSF-BF.B.4C

• Inverse Functions

• Not Inverse Functions

Tags

CCSS.HSF-BF.B.4A

What operation allows us to verify if functions are inverses?

• Multiplying

• Dividing

• Adding

• Composing

Tags

CCSS.HSF-BF.B.4B

If f(x)=x+5, what is f^-1(x)?

• (x + 5)²

• x - 5

• (x + 5)^-1

• undefined

Tags

CCSS.HSF-BF.B.4A

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

• x/3

• 3x²

• 3x + 3x

• 3x^-1

Tags

CCSS.HSF-BF.B.4A

• Inverse Functions

• Not Inverse Functions

Tags

CCSS.HSF-BF.B.4A

• Inverse Functions

• Not Inverse Functions

Tags

CCSS.HSF-BF.B.4B

What is the inverse of this function?

• A

• B

• C

• D

Tags

CCSS.HSF-BF.B.4A