Answer the following questions using the plane shown in the figure.
a. Name two different ways to name the plane shown in the figure.
b. Name any three collinear points in the plane.
c. Name any two intersecting lines in the given plane.

For a short time after a wave is created by wind , the height of the wave can be modeled using y= a sin 2pi(t) / t where a is the amplitude and t is the period of the wave in seconds. how many times over the first 5 seconds does the graph predict the wave to be 2 feet high?