D Question 7 1 pts The height y (in feet) of a ball thrown by a child is y = -" + 3x + 5, where a is the horizontal distance in feet from the point where the ball is thrown. How high is the ball when it leaves the child's hand? Question 8 1 pts The height y (in feet) of a ball thrown bya child sy = 4.2 + 23 + 5. where a is the horizontal distance in feet from the point where the ball is thrown What is the maximum height of the ball? 1 19 rout 30 3 Tech Question 9 1 pts The height y (in feet) of a ball thrown by a child is yo -tz + 2x + 5, where a is the horizontal distance in feet from the point where the ball is thrown. How far from the child does the ball strike the ground? 14 loc 19 fect 30.3 feet