Chris is on top of a mountain 120 feet above the ground shooting a bow and arrow. He shoots the arrow at an initial velocity of 128 feet per second. The equation that can be used to model the path of the arrow is y = -16t2 + 128t + 120, where y is the height of the arrow above the ground, in feet, and t is the time, in seconds, since the arrow has been shot. a) After 2 seconds, what is the height of the arrow? (PLUG 2 INTO THE EQUATION FOR t AND SOLVE) b) Determine after how many seconds, to the nearest tenth of a second, the arrow hits the ground. (YOU ARE LOOKING FOR THE POSITIVE ROOT)
