determine the period.

Explanation:

Step1: Recall period definition

The period of a periodic - function is the horizontal distance between two consecutive repeating points.

Step2: Identify repeating points

The points ((2,3)) and ((5,3)) are corresponding points on the wave.

Step3: Calculate the period

The period (T) is found by subtracting the (x) - coordinates of the two points. So (T=5 - 2=3).

Answer:

3