# An Implicit Differentiation problem

Find the slope of the tangent line at the indicated point.

(a) Witch of Agnessi

(x^2 + 4)y = 8

Point: (2, 1)

(b) Bifolium

(x^2 + y^2)^2 = 4(x^2)y

Point: (1,1)

https://brainmass.com/math/derivatives/implicit-differentiation-problem-52749

#### Solution Preview

Please see the attached file.

There is a very good reference on implicit differentiation:

http://archives.math.utk.edu/visual.calculus/3/implicit.7/

Theory

The ...

#### Solution Summary

The solution provides a theoretical explanation and then a very detailed and step-by-step work-out for the problem.

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