Inverse Functions Review

What's the name of the inverse of g(x)?

• f(x)
• f^-1(x)
• y
• g^-1(x)

Tags

CCSS.HSF-BF.B.4A

What is the inverse of the points
(1,3)(2,4)(6,8)

• (3,1)(4,2)(8,6)
• (-3,-1)(-4,-2)(-8,-6)
• (1,3)(2,4)(6,8)
• (-1,-3)(-2,-4)(-6,-8)

Tags

CCSS.HSF-BF.B.4C

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

Is this function one-to-one?

• No

• Yes

• No way to tell

Does this function have an inverse?

• No

• Yes

• No way to tell

What are the operations of the function f(x) = 2x + 4 ?

• add 4 then multiply by 2

• Multiply by 2 then add 4

• Add 2 then multiply by 4

• Multiply by 4 then add 2

What are the operations of the INVERSE of the function f(x) = 2x + 4 ?

• add 4 then multiply by 2

• divide by 2 then subtract 4

• subtract 4 then divide by 2

• This function does not have an inverse.

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

Tags

CCSS.HSF-BF.B.4A

What are the operations of the function

f(x) = 1/4x - 7?

• divide by 4 then subtract 7

• subtract 7 then divide by 4

• multiply by 4 then add 7

• add 7 then multiply by 4

What are the operations of the INVERSE of the function

f(x) = 1/4x - 7?

• divide by 4 then subtract 7

• subtract 7 then divide by 4

• multiply by 4 then add 7

• add 7 then multiply by 4