Question

Is y=3x^2-2 a function?
my guess is NO

Answer 1

there is only one value of y for every x
so
it is a function (a parabola in fact)

The inverse of this however is NOT a function

Answer 2

I don't understand. so is it or is it not a function

Answer 3

It IS a function ! (I said that)

Answer 4

Just watch out if you are asked for the inverse next.

Answer 5

okay thank you I don't know what an inverse is lol

Answer 6

Oh, sorry, assumed that if you were deciding what was a function you also were doing inverses of functions. You will be :)