We are given a graph for the height of the ball with respect to horizontal distnace x of the ball from Julie.
From the graph, we can see the position of Julie is at (0,0). And starting height of the ball when thrown is 6 feet.
Then it moved to the maximum height of 14 feet. And hit to the ground when it has position on x-axis is 3.5 feet.
Because we can see the parabola is crossing x-axis at 3.5 on the right.
That represents distance of the ball from Julie when it hit to the ground.
Therefore, it has a horizontal distance of 3.5 feet from Julie.
