SOLUTION: y-f(x)=2x^2 Y=8

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Question 892775: y-f(x)=2x^2
Y=8
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Not sure what you want.
y%3C%3EY.

If you mean, y=8, then you have 8-f%28x%29=2x%5E2. This allows to have f%28x%29=2x%5E2-8. If you mean, x=8 then you have y-f%288%29=2%288%29%5E2 and then this give you y=f%288%29%2B128 and you do not yet know f(x) nor f(8).


STUDENT RESTATED PROBLEM:
highlight_green%28y=f%28x%29=2x%5E2%29, highlight_green%28y=8%29.
Much clearer.
f(x) is clearly defined.

f%288%29=2%2A%288%29%5E2
f%288%29=2%2A64
highlight%28f%288%29=128%29

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

y-f(x)=2x^2
Y=8


highlight_green%28x+=+0+%2B-+2%29