### Home > PC3 > Chapter 3 > Lesson 3.1.4 > Problem 3-58

3-58.

If a ball is thrown vertically upward with a velocity of *t* seconds is given by the equation . At what instant will the ball be at its highest point, and how high will it rise?

Set the function

. Factor.

Solve for the

-intercepts.Take the average of the

-intercepts to locate the-coordinate of the vertex.Substitute that

-value into the original equation to calculate the maximum height.