Question

how do I figure out which points are not on the graph in a
function?

Answer 1

well, check by plugin the x-coordinate value from the pair and see if you get the y-coordinate value, if not, is not on the graph

Answer 2

so if I have f(x)= -x^2 + 4 and i have 0,4 then I would plug the 0 in for x?

f(x)=-0^2+4?

Answer 3

yeap

Answer 4

if when x = 0, y = 4, then that point is ON THE LINE of \(\bf y = -x^2+4\)

Answer 5

thank you

Answer 6

one more questions sorry - how would I know its on the line?

Answer 7

what wouldn't?