Question

(c) How far from the thrower does the ball hit the ground? Show your work.

Answer 1

We want to find how far from the thrower does the ball hit the ground.

From the equation

`h(x)=-(1)/(20)x^2+8x+6`

To solve this, let us graph the function

From the graph the parabola describes the motion of the ball. So, it hits the ground again (the x-axis plane) at 160.747

Hence the answer is 160.75 feet to 2 decimal places.