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OpenStudy (anonymous):
If f(x) =15x 2 + 10x, find f(-1).
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OpenStudy (acxbox22):
plug in -1 for x and solve
OpenStudy (solomonzelman):
is it inverse function, or f of "-1" ?
Nnesha (nnesha):
f(-1) = f(x) = f(-1) so plug -1 in to x
OpenStudy (acxbox22):
f(-1)=15(-1)^2+10(-1) f(-1)=15(1)-10 f(-1)=15-10 f(-1)=????
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