Originally Posted by

**Slappydappy**

2. When I enter a value, such as X = -500 for Sine (y = Sine x), what does this value actually mean? Does it mean -500 degrees? Or -500 Radians? On a calculator, I plugged in -500 sine (in degrees) and it gives me -.64. -500 sine (in Radians) gives me .46. What do those values correspond to and why are the signs different? I assume they are the point on the Y-axis, but why are they different values and signs?

I guess I will stop there, since the answers to these may answer my other questions. Thanks to anyone that helps me!