A question can upon the Implicit Differentiation homework Section 4.2 #21

The question was to find the lines tangent and normal to the given curve at the point (-1,0). You need to differentiate implicitly and then solve for y’ (aka dy/dx). The top image is the solutions manual version and the bottom image is my solution. Both yield the same result, but the first uses dy/dx notation whereas I used y’. Sometimes the notation makes it very confusing! I get it.

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