I can graph cosine and complete the unit

I can graph cosine and complete the unit circle Warm Up

Warm Up

Solve for x: 2. Warm Up 3.

Warm Up

Homework Questions

Graphing Cosine • Create a table similar to the one we used to find the height of a rider on The Screamer • Using the 8. 1. 4 Resource Page as a reference, find the horizontal distance for each angle given • When you have table values, create a graph How does this graph compare to the graph of sine?

2 minute stretch break

Thinking about a rider’s distance from the ground, what do you notice looking at the graph?

Degree Height 0 15 30 45 60 75 90 105 120 135 150 165 180 0 25. 88 50 70. 71 86. 60 95. 59 100 95. 59 86. 60 70. 71 50 25. 88 0 195 210 225 240 255 270 285 300 315 330 345 360 -25. 88 -50 -70. 71 -86. 60 -95. 59 -100 -95. 59 -86. 60 -70. 7 -50 -25. 88 0 Thinking about a rider’s distance from the ground, what do you notice?

Degree Height 0 15 30 45 60 75 90 105 120 135 150 165 180 0 25. 88 50 70. 71 86. 60 95. 59 100 95. 59 86. 60 70. 71 50 25. 88 0 195 210 225 240 255 270 285 300 315 330 345 360 -25. 88 -50 -70. 71 -86. 60 -95. 59 -100 -95. 59 -86. 60 -70. 7 -50 -25. 88 0 Looking at the angles where riders are the same distance from the ground, what do you notice?

BREAK!

Unit Circle

Unit Circle

What we know so far…

Homework Textbook: 8 -15, 8 -17, 8 -26, 8 -27

Unit Circle

Unit Circle

Unit Circle

Unit Circle Using what we have discussed about patterns, try to fill in the rest of the unit circle