a pebble is tossed from the top of a cliff. the pebble's height in feet is given by y(t) = -16t2 6t 200, where t is the time in seconds. its horizontal distance in feet from the base of the cliff is given by d(t) = 5t.
To start, you'll need to figure out at what time the pebble hits the ground. To figure this out, we'll set the height equal to 0. So:
-16t^2 +6t +200=0
What do you get when you solve for t? You can use factoring or the quadratic formula
