

Complete the graph. You have the vertex (middle) of the graph. Create points to make the graph symmetric.
Y-intercept (only 1)
X-intercepts (there are 2)

What should the new price be for maximum profit? (What toy price??)
What is the minimum price of a toy that will produce profit? At what number does the graph begin to have a profit??
Estimate the value of P(10).
(when the x=10 what does y=??)
How much should they sell for if they want a profit of $137? (two answers- read from the graph)

Domain (between what x values will there be a profit?)
Write the equation using the solutions.
Which are NOT true?

Which are TRUE?


Use the discriminat to determine which have two real solutions.
Where does the graph have a positive slope?
What sign is the leading coefficient for this function? positive or negative? (hint: does it open up or down on the graph you completed?)
Solve for the discriminant using the formula b^2 - 4ac
Solve for the Solutions:
Discriminant
Solutions:
Discriminant
Solutions:
Discriminant
Solutions:
Discriminant
Solutions: