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CPM Algebra 2 – Chapter 7

Trigonometric Functions

 In this chapter, students will be extending their understanding of trigonometric ratios in right triangles to trigonometric functions. During this chapter:

  • Students explore the connections between the unit circle and graphs of trigonometric functions.
  • Students look at sine, cosine and tangent of a right triangle within the unit circle.
  • Students investigate y=sin x and y= cos x as parent functions and explore their transformations.

Homework help for this chapter is here

Homework help offers tips, strategies and sometimes solutions for every homework question in this chapter.


  • Parent Guide from CPM for this chapter is here
  • Khan academy videos on the unit circle and trig ratios are here