Inverses

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

The inverse has been reflected over which line?

• y = x
• y =1
• y = 0
• y = x + 1

Tags

CCSS.HSF.BF.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSG.CO.A.5

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)

What is the equation that the inverse will reflect across?

• y = x
• y = 0
• x = 0
• Potato

Tags

CCSS.HSF-BF.B.4C

Are these functions inverses?

• Yes
• No

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

Are these the graphs of two inverse functions?

• Yes
• No
• No way to tell

Tags

CCSS.HSF-BF.B.4C

are these inverse functions?

• no
• yes
• no way to tell