MAT 161
Reading and Video #19

Section 3.3   Videos on Implicit Differentiation:

https://www.khanacademy.org/math/calculus/differential-calculus/implicit_differentiation/v/showing-explicit-and-implicit-differentiation-give-same-result

https://www.khanacademy.org/math/calculus/differential-calculus/implicit_differentiation/v/implicit-derivative-of--x-y--2---x---y---1

https://www.khanacademy.org/math/calculus/differential-calculus/implicit_differentiation/v/finding-slope-of-tangent-line-with-implicit-differentiation


Section 4.2    Videos on limits as x approaches infinity:
  https://www.khanacademy.org/math/calculus/limits_topic/limits-infinity/v/limits-at-positive-and-negative-infinity