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The quiz 2 for the math 1630 internet and mathematics i course offered in spring 2009. The quiz covers various topics including solving systems of equations using elimination and substitution methods, cost and revenue functions, and supply and demand equations.
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MATH 1630 Internet Spring 2009 Quiz 2 Name:
You must show all work to receive full credit.
3x + 4y = - 2x + 3y = -
2x – 3y = 11 3x + y = 11
a. (2 points) Write the function for total monthly costs.
b. (2 points) Write the function for total revenue..
c. (2 points) Write the function for profit. Simplify as much as possible.
d. (3 points) List the marginal revenue (include units). Write a sentence explaining its meaning.
e. (3 points) Calculate the amount of profit if 120 DVD players are manufactured and sold.
f. (4 points) Calculate the break-even point.
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