Quadratic Function: A function of degree 2 which has a graph that "turns around" once, resembling an umbrella-like curve that faces either rightside up or upside down. This graph is called a parabola.

The vertical position, h, in meters, of a fly ball as a
function of time, t, in seconds, is approximated by the
equation

h = -5t^{2} + 20t + 2

Answer the following questions about
the vertical height of the fly ball.

Press TAB after each entry to check your
response

Graded Response

a) How
high was the ball after one second in the air?

a)
m

b) To the nearest
second, how long will the ball be in the air.