Lesson Plan: Equation of a Straight Line: Two-Intercept Form Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to represent a straight line in the two-intercept form using the 𝑥- and 𝑦-intercepts.


Students will be able to

  • identify the equation of a line in intercept form, 𝑥𝑎+𝑦𝑏=1,
  • state the 𝑥- and 𝑦-axes intercepts of a line given in intercept form,
  • state the equation of a line when given its 𝑥- and 𝑦-axes intercepts, algebraically or graphically,
  • convert the equation of a straight line into intercept form,
  • calculate the slope of a line given the 𝑥- and 𝑦-axes intercepts.


Students should already be familiar with

  • graphs of straight lines,
  • the equation of a line in
    • general form,
    • standard form,
    • slope–intercept form,
    • point–slope form.


Students will not cover

  • the equation of a line in two-point form,
  • curves.

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