Question

The following graph shows at least one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is

correct.

Answer 1

Explanation:

When x = 0 y = 6 so we have the results 6 cos Nx ( as cos 0 = 1)

Now we find N

The minimum after x = 0 is y = pi/5,

so N is pi / pi/5 = 5.

Answer 6 cos (5x)