Question

Each graph shows a relation. The first and second numbers of each ordered pair in the relation are members of the set of real numbers. In each case, find the domain and the range of the relation and determine whether the relation is a function.

Answer 1

Domain: -2≥x≥2

Range: -2≥x≥2

Not a function

Explanation:

Answer 2

• Domain: [-2, 2]
• Range: [-2, 2]
• Not a function

Explanation:

The domain is the set of x values and the range is the set of y values.

For the relation to the function, each value of x must map onto no more than one value of y.