Question

simply is this a function, I think it is, but I'm not entirely sure.

x y
-2 -3
9 -5
4 6
-4 -5

Answer 1

Does each x value only go to one y value?

Answer 2

can you have a repetition of the same number in the y range

Answer 3

yes, as long as each x only goes to one y value, it's still a function

Answer 4

yea, they do thanks :D

Answer 5

So the fact that x = 9 maps to y = -5 and x = -4 maps to y = -5 doesn't mean it's not a function

If you had x = 9 map to y = 3 and y = 4 at the same time, then it wouldn't be a function.

Answer 6

you got it

Answer 7

got it