bellerum23 wrote:A bullet shot straight up is s feet above the ground after t seconds, where s = f(t) = -16t^2 + 256t. Find the height of the bullet 3 seconds after it is shot.
little_dragon wrote:bellerum23 wrote:A bullet shot straight up is s feet above the ground after t seconds, where s = f(t) = -16t^2 + 256t. Find the height of the bullet 3 seconds after it is shot.
this 1 works just like UR other 1:
put 3 in for t & simplify to get s
bellerum23 wrote:So put it like this:
f(3) = -16(3)^2+256(3)
Is the answer = 624