Finding Inverse

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

Tags

CCSS.HSF-BF.B.4A

• A

• B

• C

• D

Tags

CCSS.HSF-BF.B.4A

What does it mean to find the inverse of a function?

• the x's and y's are switched

• the x's and y's are divided by 2

• the x's and y's are made negative

• the x's and y's are the same

Tags

CCSS.HSF-BF.B.4A

• A

• B

• C

• D

Tags

CCSS.HSF-BF.B.4A

Find the inverse of
f(x) = 1/4x - 7

• f^-1(x) = 4x + 7

• f^-1(x) = -4x + 28

• f^-1(x) = -4x - 7

• f^-1(x) = 4x + 28

Tags

CCSS.HSF-BF.B.4A

Find the inverse of f(x) = 3x +8

• f^-1(x) = 3x - 8/3

• f^-1(x) = 8/3x - 1/3

• f^-1(x) = 1/3x - 8/3

• f^-1(x) = 1/3x + 8/3

Tags

CCSS.HSF-BF.B.4A

Are these the graphs of two inverse functions?

• Yes

• No

• No way to tell

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)

Tags

CCSS.HSF-BF.B.4C

13. 13. Sketch the inverse.

Tags

CCSS.HSF-BF.B.4C