2. standard COS Trig Graph

  1. The amplitude, how tall it gets = 1

  2. Period, how long before it repeats = 360°

  3. Range, how high, how low it gets = -1 to +1.

  • Minimum: -1

  • Maximum: +1

  • Standard graph goes up and down smoothly, kind of like a wave.

  • It starts at 1, where x = 0°

  • drops to 0 at 90°

  • down to -1 at 180°

  • back to 0 at 270°

  • back to 1 at 360°