david throws a ball up in the air. the graph below shows the height of the ball h in feet after t seconds…

david throws a ball up in the air. the graph below shows the height of the ball h in feet after t seconds. what is the balls greatest height?
Answer
Answer:
9 feet
Explanation:
Step1: Identify the vertex
The vertex of the parabolic - shaped height - time graph gives the maximum height. The vertex is the point $(0.75,9)$.
Step2: Determine the maximum height
The second coordinate of the vertex represents the height. So the maximum height $h = 9$ feet.