Answer:
The frequency of the given sinusoidal graph is 4.
Step-by-step explanation:
The frequency of a sinusoidal graph is the number of cycles it completes in the interval 0 to 2π radians.
From the given sinusoidal graph it is noticed that the the graph complete its one cycle in the interval 0 to .
If the complete its one cycle in , then the number of cycles completed by the graph in the inteval 0 to 2π is
Therefore the frequency of the given sinusoidal graph is 4.