Implicit differentiation on a circle

MediumCalculus~4m

For the circle x2+y2=25x^2 + y^2 = 25, find dydx\dfrac{dy}{dx} at the point (3,4)(3,4).

Show hints (2)+
  1. Differentiate both sides treating y=y(x)y=y(x).
  2. Solve for y′y', then plug in (3,4)(3,4).

Answer

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-0.75

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