How to find domain and range of the inverse of a relation

Practice Questions

PSAT Math › How to find domain and range of the inverse of a relation

Questions

8

1

What is the range of the function y = _x_2 + 2?

2

Given the relation below, identify the domain of the inverse of the relation.

$\left {(1, 2), (3, 4), (5, 6), (7, 8){ \right }$

3

What is the smallest value that belongs to the range of the function $f(x)=2|4-x|-2$ ?

4

If $f(x)=\frac{x}{x-3}$ , then which of the following is equal to $f^{-1}(x)$ ?

5

What is the range of the function y = _x_2 + 2?

6

Which of the following values of x is not in the domain of the function y = (2_x –_ 1) / (x_2 – 6_x + 9) ?

7

Given the relation below:

{(1, 2), (3, 4), (5, 6), (7, 8)}

Find the range of the inverse of the relation.

8

If $f(x) = x - 3$ , then find $f^{-1}(x)$

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