Question

Emma and Jane were playing soccer in their backyard, and Emma kicked the ball to

Jane. The curve of the ball's path can be represented by
d=-16t² + 32t + 9, where d is the distance of the ball from Emma and t is
the time (in seconds). Find how long it takes the ball to reach Jane.
4
It takes 4 seconds for the ball to reach Jane.
It takes 2.25 seconds for the ball to reach Jane.
It could take 2.25 seconds or 0.25 seconds.
It could take 4 seconds or 3.25 seconds.

Answer 1

it takes 2.25 seconds

oh, and it's 18 seconds for the next question assuming we had the same test.