Question

which equation represents the graph shown below?A. y=4sin(pi/80x)+5B. y=5cos(pi/80x)+4C. y=4cos(pi/80x)+5D. y=5sin(pi/80x)+4

Answer 1

Since the amplitud of the function is 5 and it starts on (0,9) we can say that the function is:

y=5cos(pi/80x)+4