A ball is thrown straight up from a rooftop 520 feet high. The formula h = - 161? + 108t + 520 describes the ball's height above the ground, h, in feet, t seconds after it was thrown. The ball misses the rooftop on its way down and eventually strikes the ground
The graph of the formula is shown, with tick marks not labeled along the horizontal axis. How long will it take for the ball to hit the
ground? Use this information to provide tick marks with appropriate numbers along the horizontal axis in the figure shown
800+
Height (feet)
600
400+
200
01