The height $\displaystyle {y}$ (in feet) of a ball thrown by a child is
$\displaystyle {y}=-{\frac{{{1}}}{{{14}}}}{x}^{{2}}+{4}{x}+{5}$
where $\displaystyle {x}$ is the horizontal distance in feet from the point at which the ball is thrown.

(a) How high is the ball when it leaves the child's hand? Preview Question 6 Part 1 of 3   feet

(b) What is the maximum height of the ball? Preview Question 6 Part 2 of 3   feet

(c) How far from the child does the ball strike the ground? Preview Question 6 Part 3 of 3   feet