Question

What are the domain and range of the function represented by the set of ordered pairs?

{(-6, 12), (-3, -2), (1, 0), (14, -4)}

A. Domain: {-6, -3, 1, 14}
Range: {-4, -2, 0, 12}

B. Domain: -6 ≤ x ≤ 14
Range: -4 ≤ y ≤ 12

C. Domain: {-4, -2, 0, 12}
Range: {-6, -3, 1, 14}

D. Domain: -4 ≤ x ≤ 12
Range: -6 ≤ y ≤ 14

Answer 1

A

Explanation:

the domain is the definition of the valid x (input) values.

the range is the definition of the valid y (result) values.

as the function is defined by listing the specific points, the function only consists of individual points and not of connecting lines.

therefore the domain and range cannot be continuous intervals (otherwise the function would suddenly also include points not in the original list).

so, B and D are wrong.

and A is right, because the domain contains the x values, and the range the y values.