Lesson Plan: Solving Cubic Equations Graphically Mathematics

This lesson plan includes the objectives and prerequisites of the lesson teaching students how to graph a cubic equation and use its graph to find its solution or solutions.


Students will be able to

  • graph the cubic equation 𝑦=𝑎𝑥+𝑏𝑥+𝑐𝑥+𝑑 to find the solution or solutions to 𝑎𝑥+𝑏𝑥+𝑐𝑥+𝑑=𝑒,
  • solve an equation of the type 𝑓(𝑥)=𝑔(𝑥) by graphing 𝑦=𝑓(𝑥)𝑔(𝑥) and solving 𝑦=0 and vice versa.


Students should already be familiar with

  • graphing functions,
  • solving quadratic equations graphically.

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