Question

Determine whether the relation is a function.
{(-7, -7), (-7, -8), (-1, 4), (6, 5), (10, -1)}

Answer 1

For those to b a function, there can not be any points that lie on a vertical line...

Answer 2

Do I use the vertical line test?

Answer 3

in other words, for any given input X value, there can only be one corresponding output Y value

Answer 4

Ok so after doing this I get that it is not a function.

Answer 5

yes, the vertical line test works

Answer 6

yes, because the value x=-7, has y=-7 and y=-8

Answer 7

whew thank you for all your help!

Answer 8

welcome