Question

Is this relation a function: (2,-3),(-4,2),(6,2),(-5,-3),(-3,0)

Answer 1

No the -3 repeats twice in y

Answer 2

so does 2

Answer 3

YES

Answer 4

That's allowed, if the inputs are different.

Answer 5

oh yeah he/she is right

Answer 6

stack them up to chk:

( 2,-3)
(-4, 2)
( 6, 2)
(-5,-3)
(-3, 0)
^
for every x value given, there should only be 1 y value that can be attached to it. since none of your x values are used more than once this is a moot point.