graph the function over one period interval find the amplitu

graph the function over one period interval. find the amplitude and period of the function.

y=2cos(3x)-5

Solution

y=2 cos (3x) - 5

This equation is of the form y=A cos (Bx + C)

Where A is the amplitude

period=2pi/B

In the given equation amplitude is 2

Perid is 2pi/3