Question

Can anyone help question is below

Which relation is a function?
A) x = y2
- 3
B) x = y - 4x2
C) y
2 = 4x - 6
D) x
2 = y2
- 10

Answer 1

you copy pasted the question and it got messed up

Answer 2

take a screenshot or use latex pls

Answer 3

@dan815

Answer 4

@dan815 did you see it now?

Answer 5

Dan is absolutely right. copying and pasting often messes up your exponents.
Your screen shot is fine; it shows the exponents as they should be presented.

Next: How do you recognize a function? How do you recognize a non-function?

Graphing helps with this. The graph of x=y^2 looks like

Answer 6

@mathmale