Question

Is the relation a function? Explain in sentences plz

{(2, 15), (15, –4), (–9, –7), (13, 14)}

Answer 1

notice how there are no repeats in x value

Answer 2

ya

Answer 3

this means that each x value is paired with exactly one y value

so if you plug in some x value, you'll get EXACTLY ONE output y value

Answer 4

this means that we do have a function

Answer 5

ok

Answer 6

if we had (2, 15) and (2, 17), then the input of x = 2 produces either y = 15 or y = 17...which is it?...we don't know

so that would not make it a function

Answer 7

in this case, that doesn't happen, so again

{(2, 15), (15, –4), (–9, –7), (13, 14)}

is a function

Answer 8

ok that make sences thanks

Answer 9

yw