Asked by Liv
A point is moving along the curve xy=12. When the point is at (4,3), the x-coordinate decreases at the rate of 2cm/sec. How fast is the y-coordinate changing at that point?
Answers
Answered by
Steve
xy = 12
y dx/dt + x dy/dt = 0
Now just plug in your numbers and solve for dy/dt
y dx/dt + x dy/dt = 0
Now just plug in your numbers and solve for dy/dt
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