College Algebra Homework help

I dropped a ball from 3ft,6ft, and 12ft. For each of those positions i have to use the position function to calculate the times. My original times were .56,.61,.87. The books position function is s(t)=16t(squared)+initial velocity(in ft)+original height. I also have to verify this algebraically. Can someone please help me?
Last edited by FEELIP; 08042007 at 11:08 AM..
