Use the drawing tool(s) to form the correct answers on the provided number line. John is organizing a local event. He expects the approximate attendance for the event to be modeled by the function a(t) = -16t2 + 48t + 64, where t is time in hours.

Assuming the event ends when there are no attendees, plot the domain to represent the duration of the event. The number line goes from -5 to 5, so it would be like this
-5 -4 -3 -2 -1 0 1 2 3 4 5