Click in the checkboxes, then move the sliders to investigate the effects of "a", "b", "c" and "d" on the sine curve.
Note that b>0 and c moves in increments of pi/4

1. Describe the relationship between "a" and the amplitude of the sine curve.
2. Describe the relationship between "b" and the period of the function. can you find an equation for the period (p) in terms of b?
3. Describe the relationship between "c" and horizontal translations of the graph. Be careful with your use of positive and negative.
4. Describe the relationship between "d" and the principal axis of the curve.