The graph of a sine function is drawn. One full cycle goes from x=0 to x=2pi/5 and the low point on that cycle is (pi/10-3). Which of the following functions could have this graph?

Answer 1

The function that could have this graph is:

y = sin(5x)

This function has a full cycle from x=0 to x=2pi/5 and has a low point at (pi/10-3).