Question

8. Identify the mapping diagram that represents the relation and determine whether the relation is

a function.
(-5,-4), (-1,5) (-5,3),(7,8)

Answer 1

Well, you didn't give a picture of the available mapping diagrams, so I can't tell you that. However, I CAN tell you that the relation is not a function.

Explanation:

A function occurs when each input only has one output. For example if the input is 5, it can only give 1 y-value out. It cannot give 2,3,4...etc values. This relation is not a function because -5 maps to both -4 and 3. That's one input to two outputs, which breaks the rules of a function.