Introduction to function

Question

Determine whether the relation is a function. Give the domain and the range for the relation.

{(9,9),(7,7),(-8,-8),(5,5)}

A) Is this a function?

B) What is the domain?

C) What is the range?

Answer 1

Since all x values do not repeat themselves, it is a function. The domain would be (-8,9), and the range is (-8,9)

Answer 2