The function h(t) = -t^2+8t+2 represents the height, in feet, of a stream of water being squirted out of a fountain after t seconds. What is the maximum height of the water? A. -18 feet
B. 8 feet
C. 18 feet
D. 36 feet

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

10.4 is the answer for you