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Calculus1 17 Online
OpenStudy (anonymous):

How do I solve a equation like this: If y = -7 x^3 - 7 x, determine dy/dx when x = 1 and dx/dt = 4 ?

OpenStudy (anonymous):

Take the implicit derivative of x respect to t and y respect to x. Solve for dy/dx algebraically and then plug in the points to get a constant

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