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mathcalculus
 2 years ago
HELP: Determine the values of where the tangent line is horizontal for the function:
mathcalculus
 2 years ago
HELP: Determine the values of where the tangent line is horizontal for the function:

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zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0take the derivative, and set it equal to zero

mathcalculus
 2 years ago
Best ResponseYou've already chosen the best response.0then plug into original function?

zzr0ck3r
 2 years ago
Best ResponseYou've already chosen the best response.0nope, it wants x values, so solve for = 0, and that's your answer

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

mathcalculus
 2 years ago
Best ResponseYou've already chosen the best response.0@zzr0ck3r thank you=]

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

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

mathcalculus
 2 years ago
Best ResponseYou've already chosen the best response.0i missed up on something, hats not coming out right..
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