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mathcalculus
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HELP: Determine the values of where the tangent line is horizontal for the function:
 one year ago
 one year ago
mathcalculus Group Title
HELP: Determine the values of where the tangent line is horizontal for the function:
 one year ago
 one year ago

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zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.0
take the derivative, and set it equal to zero
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
then plug into original function?
 one year ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.0
nope, it wants x values, so solve for = 0, and that's your answer
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
oh ok.
 one year ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.0
example f(x) = x^2 + 2x f'(x) = 2x+2 2x+2 = 0 x = 1 so f(x) has horizontal tangent at x = 1
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
@zzr0ck3r thank you=]
 one year ago

zzr0ck3r Group TitleBest ResponseYou've already chosen the best response.0
I will note that in most cases when they say "value" that implies y, but in this situation they said "x value".
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
to take the derivative: we must use the power and quotient rule for this question right?
 one year ago

mathcalculus Group TitleBest ResponseYou've already chosen the best response.0
i missed up on something, hats not coming out right..
 one year ago
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