Question

I will mark you

Given the relation: (0,0), (5,10), (6,12), (10,20) and based on the definition of function, is that relation a function?

Why or why not?

Answer 1

Yes, because the x's do not have more than one y.

Explanation:

x y

0 0

5 10

6 12

10 20

(That's meant to be a table). Looking at the x and y table values, you can see that none of the x's have two y's. So, this relation is a function.