Functions (general)

What does it mean to find the inverse of a relation?

• the x's and y's are switched in each ordered pair

• the x's and y's are divided by 2
• the x's and y's are made negative

What is the inverse of the given coordinates: (1, 2) (3, 8) (-3, 6)

• (1, 2) (3, 8) (-3, 6)

• (1, 2) (8, 3) (-3, 6)

• (-1, -2) (-3, -8) (3, -6)

• (2, 1) (8, 3) (6, -3)

What is the inverse of the given coordinates: (1, 2) (3, 8) (-3, 6)

• (1, 2) (3, 8) (-3, 6)

• (-1, -2) (-3, -8) (3, -6)

• (2, 1) (8, 3) (6, -3)

• (1, 2) (8, 3) (-3, 6)

The function y=f(x) has an inverse function  $y=f^{-1}\left(x\right)$  . If f(a)=-b then which of the following must be true?

•  $f^{-1}\left(-b\right)=-a$  

•  $f^{-1}\left(\frac{1}{a}\right)=-\frac{1}{b}$  

•  $f^{-1}\left(-b\right)=a$  

•  $f^{-1}\left(b\right)=-a$  

Here is the domain and range for a function:

D: (-∞, ∞)

R: [3, ∞)

What is the domain and range of the inverse?

• D: [3, ∞)

  R: (-∞, ∞)

• D: (-∞, ∞)

  R: [3, ∞)

Which graph shows the inverse of the graph above?

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Which is the inverse of the function above? There is more than one correct answer. Check all that apply.

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Which is the inverse of the table?

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Which of the following is the inverse function in item 5?

• $f^{-1}\left(x\right)=\frac{x-60}{2000}$

• $f^{-1}\left(x\right)=\frac{x+5}{3500}$

• $f^{-1}\left(x\right)=\frac{x+35000}{50}$

• $f^{-1}\left(x\right)=\frac{x-3500}{60}$

What is the RANGE of the INVERSE function?

• {-5, 1, 3, 4}

• {-4, -3, -1, 5}

• {-4, -2, 0, 7}

• {-7, 0, 2, 4}