1. The problem statement, all variables and given/known data A player hits a volleyball when it is 4 ft above the ground with an initial vertical velocity of 20 ft/s (equation would be h = -16t2 + 20t + 4). What is the maximum height of the ball? 2. Relevant equations quadratic formula 3. The attempt at a solution t = -20 ±√202 - 4(-16)(4) / 2(-16) t = -0.175390 and 1.425390 I don't think my answer is correct, but I don't know what else to do. And I don't know how to find the maximum height of the ball using the answer above :( Any help would be greatly appreciated, thank you!!