CCSS.Math.Content.HSF.BF.B.4

What is the inverse of this function?

• A
• B
• C
• D

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CCSS.Math.Content.HSF.BF.B.4

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3
• f^-1(x) = -1/4x - 3
• f^-1(x) = 1/4x + 3
• f^-1(x) = -4x - 3

Tags

CCSS.Math.Content.HSF.BF.B.4

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

Tags

CCSS.Math.Content.HSF.BF.B.4

What is the inverse of the function?

• f^-1(x) = x² - 3, x ≥ -3
• f^-1(x) = x² - 3, x ≥ 0
• f^-1(x) = x² + 3, x ≥ -3
• f^-1(x) = x² + 3, x ≥ 0

Tags

CCSS.Math.Content.HSF.BF.B.4

What is the inverse of the function?

• f^-1(x) = (x - 8)², x ≥ 8
• f^-1(x) = (x - 8)², x ≥ 0
• f^-1(x) = (x + 8)², x ≥ 8
• f^-1(x) = (x + 8)², x ≥ 0

Tags

CCSS.Math.Content.HSF.BF.B.4

Will the inverse of this function, be a function?

• No
• Yes
• No way to tell

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CCSS.Math.Content.HSF.BF.B.4

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.Math.Content.HSF.BF.B.4

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

• f^-1(x) = 1/4x + 7/4
• f^-1(x) = -4x + 28
• f^-1(x) = -4x - 7
• f^-1(x) = 4x + 28

Tags

CCSS.Math.Content.HSF.BF.B.4

Find the inverse 
f(x)=2x-2
     

• f^-1(x)=1/2x+1
• f^-1(x)=-2-1/2x
• f^-1(x)=-7/3x-20/3
• 2-2/5x

Tags

CCSS.Math.Content.HSF.BF.B.4

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.Math.Content.HSF.BF.B.4