desireeklafontaine6 desireeklafontaine6

14-07-2017
Mathematics

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Which is the equation of the power function p(x) = ax3 where p(–2) = –64? p(x) = –32x3 p(x) = –16x3 p(x) = 8x3 p(x) = –8x3

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sergibcnusa sergibcnusa

14-07-2017

p(-2) = a*(-2)^3 = -8*a, right? :) Then -8*a=64==> a = 64/(-8)=-8. So, the last one!

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