applications of quadratics

Question

A coin, thrown upward at time 𝑡=0 t = 0 from an office in the Empire State Building, has height in feet above the ground 𝑡 t seconds later given by h(t)=-16t^2+64t+960=-16(t-10)(t+6) From what height is the coin thrown?

Answer 1

When it is thrown, the time is zero. Therefore if you plug in t=0 into the equation, the initial height is 960 ft which is the height from which it was thrown