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OpenStudy (anonymous):
Help? given that f(x)= -x^2+8x-15 has a relative maximum at x=4, choose the correct statement. a) f' is positive on the interval (-inf, inf) b) f' is negative on the interval (4, inf) c) f' is negative on the interval (-inf, 4) d) none of these
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OpenStudy (anonymous):
I chose c am I right?
OpenStudy (anonymous):
@Loser66
OpenStudy (anonymous):
@mathmale @RaphaelFilgueiras
OpenStudy (anonymous):
|dw:1392434314892:dw|
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