Inverse Functions and Their Graphs

are these inverse functions?

• no

• yes

• no way to tell

Are these functions inverses?

• Yes

• No

• No way to tell

Will the inverse of this function, be a function?

• No

• Yes

• No way to tell

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 f(x) = 4x-7 and g(x) = (x+7)/4 inverses of each other?

• No

• Yes, but only if x is not equal to -7

• Yes, or all x > -4

• Yes, because f(g(x)) and g(f(x)) both equal x

The inverse has been reflected over which line?

• y = x

• y =1

• y = 0

• y = x + 1

What is the best description of the graph?

• They are both functions, but not inverse functions.

• They are inverse functions.

Are the functions inverses?

• Yes

• No

• Inverse Functions

• Not Inverse Functions

Which answer always shows that f(x) and g(x) are inverses?

• f o g (x) = 3x-5

•  g o f = f o g

• f o g (x) = xg o f (x) = x
  

• g o f (x) 3x-5