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OpenStudy (anonymous):
what is the vertex of -2x^2+4x-7
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hero (hero):
Did you finish the first one?
OpenStudy (anonymous):
yes im just checking this one, because according to my homework the answer is (1,-5) but i got (x-1)^2-8 which is (1,-8)
OpenStudy (anonymous):
@Hero
hero (hero):
To find the vertex, you only need x = -b/(2a). Then after finding x, you insert it into the function to find y.
OpenStudy (anonymous):
oh i see
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