Question

Which one is a function and which one is not??
Two relations are given and one is a function and one is not.
Identify each and explain.
1.) (5,-2), (-2,5), (2, -5), (-5,2)
2.) (5, -2), (-2,5), (5,2), (-5,2)

Answer 1

A function may not have two y-values assigned to the same x-value