Must complete 4 questions and show all work. All work must be checked for accuracy. Must get A
4. The revenue for a company is given by the equation R = -0.1% +95x
where x is the number of units sold. How many units must be sold to yield
the maximum revenue? What is the maximum revenue?
Ans. : # units sold =
max. rev. =
Name:
Directions: Show all work in the spaces provided. Place your
answers on the lines provided.
1. a). Find the standard form of y = x + 10x + 21 by completing the
square.
Ans.
b). Sketch the graph.
2. Find the quadratic function, in standard form, that has a vertex at
(-1,3), and passes through the point (0, 1).
Ans.
3. Find the x intercepts of y = x – 5x+4 .
Ans.
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