Solve the problem.The average number of vehicles waiting in line at a toll booth of a super highway is modeled by the function 
, where x is a quantity between 0 and 1 known as the traffic intensity. What happens to the average number of vehicles waiting as traffic intensity increases?
A. The average number of vehicles waiting increases.
B. The average number of vehicles waiting remains constant.
C. The average number of vehicles waiting decreases.
D. The average number of vehicles waiting decreases at first, but then increases.
Answer: A
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Identify the domain and the range of the relation from the graph.
A. Domain: [-8, ?) Range: (-?, ?) B. Domain: [8, ?) Range: (-?, ?) C. Domain: (-?, ?) Range: [8, ?) D. Domain: (-?, ?) Range: [-8, ?)
Solve by the most appropriate method.3m2 + 12m + 1 = 0
A. m = 
B. m = 
C. m = 
D. m = 
Change the improper fraction to a mixed number or a whole number.
A. 218
B. 216
C. 
D. 31
Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even.C(x) = 128x + 330,000R(x) = 278x
A. 2200 units B. 2202 units C. 2201 units D. 772 units