Question

Determine whether the equation defines y as a function of x. If it does, state y as a function of x
x^2 + 9y^2 =1
y=?

Answer 1

Are you to rearrange the equation so that "y" is by itself?

Answer 2

i think so

Answer 3

If so, subtract x^2 from both sides. Then divide both sides by 9. Afterwards, find the square root. Simple algebra.

Answer 4

not simple, which is why i need help.

Answer 5

\[y=(+/-)\sqrt{x^2-9}\]

Answer 6

/9 i mean

Answer 7

nevermind.

Answer 8

Looks about it. Is everything on the right side divided by 9? Or just whats in the square root?

Answer 9

\[y=(+/-)\sqrt{(1-x^2)/9}\]

Answer 10

Ok. Looks good.

Answer 11

I'm still iffy on whether or not this is what's required for this question.

Answer 12

y as a function of x: y(x) =

Answer 13

Ok. If that's what you want. Good job.