## anonymous one year ago Use implicit differentiation to find slope of tangent line to the curve xy-y^2+4x=-2 at the point (1,-2)

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1. IrishBoy123

$$xy-y^2+4x=-2$$ so: $$\frac{d}{dx}(xy)-\frac{d}{dx}(y^2)+\frac{d}{dx}(4x)=\frac{d}{dx}(-2)$$ what do you get?