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OpenStudy (anonymous):
just wan to ask if i am right. y = x^3 - 3x + 5 so that x = 4, what rate is y changing? I got 45 a answer any one can confirm this?
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OpenStudy (anonymous):
i got 57
OpenStudy (anonymous):
how? can you please explain
OpenStudy (nikvist):
very simple, put x=4 in equation and you will get y=57
OpenStudy (anonymous):
i see thanks. i that. so the rate of change is 9? 57-45 = 9
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