# Find maximum height of ball

Taught by YourMathGal
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Lesson Description:

This video uses the vertex point of a parabola to find the maximum height of ball thrown in the air given its initial speed.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

• How can you use quadratic equations in real life?
• What is an application of parabolas?
• How can you find the maximum height of a ball thrown in the air using the vertex of a parabola?
• How can you find the vertex of a parabola?
• If Paul throws a ball upward with an initial speed of 48 feet per second, and its height h in feet after t seconds is given by the function h(t) = -16t^2 + 48t, what is the maximum height of the ball?
• How do you find the vertex of the equation h(t) = -16t^2 + 48t?
• What is the formula for finding the x-value of the vertex of a parabola?
• How can you figure out when a ball hits the ground if it is thrown into the air?
• How can you figure out when h(t) = -16t^2 + 48t equals 0?
• How do you solve -16t^2 + 48t = 0?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson shows an application problem for parabolas in which you will learn how to find the maximum height or vertex of the parabola. This is a great example application problem for a quadratic equation. You will also learn how to find out when the ball hits the ground. All steps and concepts are explained in this example problem.