(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Assume x and y are functions of t. Evaluate dy/dt for each of the following.

xy-5x+2y^3=-70, dx/dt=-5 x=2 y=-3

2. Relevant equations

n/a

3. The attempt at a solution

I used x' and y' for dx/dt and dy/dt

I found the derivative of the equation, using the product rule for xy

(x)(yy')+(y)(xx')-5+6y^2=0

From here, my problem was figuring out how to simplify the equation...

(x)(yy')=5-6y^2-yxx'

y'=

The answer was -5/7...I'm pretty sure I messed up on solving the equation for 0 and y'

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# Homework Help: Evaluate dy/dt for each of the following

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