Can I get some help???
The function h(t)=−49t² + 98t models the height of a ball, h(t), in feet, t seconds after being launched upward. Which of the following is equivalent to this function and most easily reveals the length of time the ball is in the air?
A. h(t) = −49t (t+2)
B. h(t) = 98t − 49t²
C. h(t) = −49t (t−2)
D. h(t) = −49 (t² − 2t)