In this lesson, Julie Harland demonstrates how to use the vertex point of a parabola to find the maximum height of a ball thrown in the air given its initial speed. She explains that the height of the ball can be represented by a parabolic function with time as the variable. By finding the vertex point of the parabola, which is the maximum height, she shows how to calculate the height of the ball at any given time. The lesson concludes with a demonstration of how to use this method to find when the ball hits the ground again.
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