I need help please because I don’t get it

Ifigured out the question and i dont know what to put here

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5