A study of driving costs of 1992 model subcompact (four-cylinder) cars found that the average cost (car payments, gas, insurance, upkeep, and depreciation), measured in cents/mile, is approximated by the function
?
?
where x denotes the number of miles (in thousands) the car is driven in a year. What happens to the average cost as the number of miles driven increases without bound?
?
A. It approaches 2,640 ¢/mi.
B. It approaches 19 ¢/mi.
C. It increases without bound.
D. It becomes infinitely small.
Answer: B
Mathematics
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= 
- 
= x - 5
What will be an ideal response?
Mathematics
Identify any vertical asymptotes in the graph.
A. x = -6 B. x = 4 C. x = 6 D. x = 6, x = -6
Mathematics
Write the inequality in interval notation.x ? -6
A. (-?, -6) B. (-6, ?) C. (-?, -6] D. [-6, ?)
Mathematics
Match the graph with its corresponding function.
A. g(x) = 0.5|x - 2| + 6 B. g(x) = 0.5|x + 2| - 6 C. g(x) = 6|x - 2| + 0.5 D. g(x) = 6|x + 2| - 0.5
Mathematics