Functions Composite Functions Inverse Functions Transformations

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)

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

Select the two functions which are inverses of each other:

The inverse has been reflected over which line?

• y = x
• y =1
• y = 0
• y = x + 1

Determine f^-1(2) given the following information about an invertible function, f(x)
f(1) = -3
f(2) = -2
f(-1) = 2
f(3) = -1

• 1
• -1
• 2
• -2

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) = -1
• g(2) = 1
• g(-2) = 1
• g(1) = 2

TRUE or FALSE
If f is an invertible function and f(a) = b, then f^-1(b) = a.

• TRUE
• FALSE

If f^-1(-25) = 7 then what is f(7) = 

• 25
• 7
• No enough information. 
• -25

If f(x) = 3x-9, what is f ^-1(12)?

• 25
• 9
• 11
• 7