INTRO TO QUADRATICS
Vertex – the minimum or maximum
point
Axis of Symmetry- invisible line that
cuts function in half
Y intercept – when graph crosses the y
axis (when x=0)
X intercept – when the graph crosses
the x axis (when y=0)
APPLICATION!!!
• A go-cart track has about 380 racers per week
and charges $35 to race. The owner estimates
that there will be 20 more racers per week for
every $1 reduction in the price per race. How
can the owner of the go-cart track maximize
weekly revenue?
SET UP
F.O.I.L.
• Y = (35-X) * (380 + 20X)
LETS LOOK BACK
• A go-cart track has about 380 racers per week
and charges $35 to race. The owner estimates
that there will be 20 more racers per week for
every $1 reduction in the price per race. How
can the owner of the go-cart track maximize
weekly revenue?
• p. 242: 55-59