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OpenStudy (anonymous):
If (a, -20) is a point on the graph of y=x^2-9x, what is a?
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OpenStudy (nincompoop):
solve for x
OpenStudy (anonymous):
@nincompoop Yes the first thing you need to do is solve for x
OpenStudy (nincompoop):
are you just looking for an answer?
OpenStudy (anonymous):
Yea, but I got x(x-9), so x=0 and x=9?
OpenStudy (nincompoop):
then put that as your answer and see if it is correct. though I think it is wrong
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OpenStudy (anonymous):
y=x(x-9), there's no zero so those above weren't it
OpenStudy (nincompoop):
|dw:1378604246266:dw|
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