Question

is this a function. i dont think so but am not sure...

Answer 1

Yes this is a function.

Answer 2

Because it passes the vertical line test @EmmaH

Answer 3

what exactly is the vertical line test?

Answer 4

Also the reason you are not getting help here... is because this is Writing. You have to post in Mathematics. :)

Answer 5

hahaha oops

Answer 6

http://www.mathwarehouse.com/geometry/parabola/images/x=y2_vertical_line_test.gif

Answer 7

You see the red line in the picture is a Vertical line... notice though it touches the parabola TWO times. That is not a function.

Answer 8

oooh thanks a bunch:)