Please help!

flynn is playing with a toy that is tied to his hand by a string. the toy falls toward the floor then risee back towards flynns hand, and repeats this motion, following the path illustrated by the given graph. (see pic)

use the graph to complete the function h(t) that models the toys height, in feet, above the floor t seconds after it has left flynns hand.

h(t)=____ (poss. answers- 2, 1.75, 3.5, 4) cos=(____pi^t) poss. answers- 6, 1/6, 1/3, 3)
+_____ (poss. answers- 1.75, 0.25, 2, 2.25)

Please help flynn is playing with a toy that is tied to his hand by a string the toy falls toward the floor then risee back towards flynns hand and repeats this class=