Polynomial Equations · Try It 24

Calib is going to throw his lucky penny from his balcony on a cruise ship. When he throws the penny upward from 128 feet above the ground, the function $h\left(t\right)=-16t^2+32t+128$ models the height, h, of the penny above the ocean as a function of time, t. Find:
ⓐ the zeros of this function which is when the penny will hit the ocean, ⓑ when the penny will be 128 feet above the ocean, ⓒ the height the penny will be at $t=1$ seconds which is when the penny will be at its highest point.

OpenStax, Intermediate Algebra 2e · §6.5 Polynomial Equations · Try It 24