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Interactive Checkpoint
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 Interactive Checkpoint
 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 = -5t2 + 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.
b) s
c) What is the maximum height of the ball?
c) m