does anyone have the answer to this trig problem?y = -4 + (1/2) sin2x?

Answer 1

You mean the graph of the function? The second term is a sine wave with frequency 2x, meaning it goes through a full cycle in pi radians instead of 2*pi radians. The max amplitude of the second term is +/- 1/2, since the max of the sine is +/- 1. That's the second term. Now, offset that by 4 units down at every point. Got it? Okay, your turn.