Solving Exponentials Using Logarithms

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)

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

• TRUE
• FALSE

Which of the following is the inverse of this graph?

• Parabola open up
• Parabola open left
• Parabola open right
• Parabola open down

Are these functions inverses?

• Yes
• No

Are these functions inverses?

• Yes
• No

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

• f(x)
• f^-1(x)
• y
• g^-1(x)

If f^-1(-25) = 7 then what is f(7) = 

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

Are these functions inverses?

• No
• Yes
• No way to tell

Are these inverse functions?

• no
• yes
• no way to tell

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

• f(-2) = -3

• f(-1) = 2