1 / 12

# Section 4.6 - PowerPoint PPT Presentation

Section 4.6. Graphs of Other Trigonometric Functions. Overview. In this section we examine the graphs of the other four trigonometric functions. After looking at the basic, untransformed graphs we will examine transformations of tangent, cotangent, secant, and cosecant.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'Section 4.6' - vic

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### Section 4.6

Graphs of Other Trigonometric Functions

• In this section we examine the graphs of the other four trigonometric functions.

• After looking at the basic, untransformed graphs we will examine transformations of tangent, cotangent, secant, and cosecant.

• Again, extensive practice at drawing these graphs using graph paper is strongly recommended.

• Three key elements of tangent and cotangent:

• For which angles are tangent and cotangent equal to 0? These will be x-intercepts for your graph.

• For which angles are tangent and cotangent undefined? These will be locations for vertical asymptotes.

• For which angles are tangent and cotangent equal to 1 or -1? These will help to determine the behavior of the graph between the asymptotes.

|A| = amplitude (affects the places where tangent or cotangent is equal to 1 or -1)

π/B = period (distance between asymptotes). The asymptotes will keep their same relative position

C/B = phase (horizontal) shift. Left if (+), right if (-)

• The graphs of secant and cosecant are derived from the graphs of cosine and sine, respectively:

• Where sine and cosine are 0, cosecant and secant are undefined (location of vertical asymptotes).

• Where sine and cosine are 1, cosecant and secant are also 1.

• Where sine and cosine are -1, cosecant and secant are also -1.

• To graph a transformation of cosecant or secant, graph the transformation of sine or cosine, respectively, then use the reciprocal strategy previously discussed:

|A| = amplitude (affects the places where secant or cosecant is equal to 1 or -1)

2π/B = period (distance between asymptotes)

C/B = phase (horizontal) shift, left if (+), right if (-)