Question

Part 1: Create a relation of five ordered pairs that is a function. In complete sentences explain why this relation is a function.
Part 2: Create a relation of five ordered pairs that is not a function. In complete sentences explain why this relation is not a function.

Answer 1

{(1,2) (3,4) (5,6), (-2,5) (-.6,7)}

This relation is a function because none of the ordered pairs have the same first number.

Answer 2

{(1,2) (1,3) (1,6) (-2,8) (6.9)}

This relation is not a function because three of the ordered pairs have the same first number.