Question

Find the domain and range of each relation then determine if the relation is a function

{(-1, 4), (-1, 9), (-1, 15), (-1, 0)}

Answer 1

Explanation:

domain of each function

the domain is the x- coordinate of a point say. (x,y)

domain = -1,-1,-1 and -1

RAGE

IT IS the y-coordinate of a point (x, y)

Range = 4,9,15 and 0

This function is a one to many function

Answer 2

• The relation is not a function.

Explanation:

The first numbers in ordered pairs form the domain and the second numbers form the range.

• So the domain is: {- 1, -1, -1, -1}
• The range is: {4, 9, 15, 0}

Since the domain is repeated for each pair, this relation can't be a function according to definition of a function, each input should have a unique output.