1. standard SIN Trig Graph

The amplitude, how tall it gets = +1
Period, how long before it repeats = 360°
Range, how high, how low it gets = -1, +1.
Minimum: -1
Maximum: +1
Standard graph goes up and down smoothly, kind of like a wave.
It starts at zero, where x = 0°
goes up to 1 at 90°
back to 0 at 180°
down to -1 at 270°
back to zero at 360°