Question: The equation x2y + 2x + y = 4 describes a curve in the zy-plane. Use implicit diffes- dy entiation to find as a

The equation x2y + 2x + y = 4 describes a curve in the zy-plane. Use implicit diffes- dy entiation to find as a function of x and y, then use this to find the equation of the dx tangent line to the curve at the point (-1,2).

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