Question

Use the quadratic formula to solve the problem.

A soccer player throws the ball onto the field from the sideline. An equation modeling the ball's flight is h = -16t2 + 18t + 2. In how many seconds will the ball reach the ground?

Answer 1

\[\frac{ -b \pm \sqrt{b^{2}-4ac } }{ 2a}\]

Answer 2

for your equation a = -16, b = 18, and c = 2