Posted by **sara** on Monday, September 21, 2009 at 8:55pm.

Find an expression for the function whose graph is the bottom half of the parabola x + (y - 9)2 = 0.

y=?

some help would be appreciated! thanks

- math -
**Reiny**, Monday, September 21, 2009 at 9:35pm
y = √-x + 6, x ≤ 0

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