Water in the tallest stream reaches a height of h = 20 + 84t – 16t2 feet at t seconds after leaving a nozzle on the fireboat. You can find the water's greatest height by finding the vertex of the parabola for h = 20 + 84t – 16t2.

In this chapter you will: solve quadratic equations use the quadratic formula and the discriminant solve problems using quadratic equations solve rational and radical equations