Question

h(t) = c - (d - 4t )^2
At time t = 0, a ball was thrown upward from an initial height of 6 feet. Until the ball hit the ground, its height, in feet after t seconds was given by the function h above, in which c and d are positive constants. If the ball reached its maximum height of 106 feet at time t = 2.5, what was the maximum height, in feet, of the ball at time t = 1?

Answer 1

anyone can help? thanks a mil!!!!!