Trig Review Part 5

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
5537 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, the teacher reviews how to graph the tangent function and then applies that knowledge to graph y equals the tangent of x over 3. The key takeaway is that the period of the tangent function is pi, but when the function is multiplied by a constant (in this case, 1/3), the period is stretched or compressed accordingly. As a result, the period of y equals tangent x over 3 is 3 pi.

Lesson Description:

Graphing y = tan(x/3)) and stating period. Solutions to a Review for a Trigonometry Test for a class. . See pdf on that site under Trig, special videos.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • How do you graph trig functions?
  • How do you graph y = tan(x/3)?
  • How do you find the period of y = tan(x/3)?
  • What is an asymptote?
  • How do you know where asymptotes occur in a tangent graph?
  • How do you know where the graph of a tangent function is positive, negative, 0, or undefined?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson does something very similar to the previous lessons, but this time the parent function used is tan x, which looks quite a bit different than sin or cos. The steps used and thought processes involved in graphing the function and finding the period are explained.