### Home > CCA2 > Chapter 7 > Lesson 7.2.1 > Problem 7-124

7-124.

David Longshot is known for his long golf drives. Today he hit the ball 250 yards and estimated that the ball reached a maximum height of 15 yards. Find a quadratic equation that would model the path of the golf ball.** **Homework Help ✎

A sketch of the graph would look like the one below.

You must find the value of *a* for the quadratic equation.*y* = *a*(*x* − *h*)^{2} + *k*

What is the vertex?

Use the vertex and another point to solve for *a*.