Solve the problem.The table lists the average composite scores on a national entrance exam for selected years. 
Make a line graph of the data. If the graph represents a piecewise-linear function f, find a symbolic representation for the piece of f located on the interval 
A. f(x) = 4.4x - 8598.1 if 1986 ? x ? 1988
B. f(x) = 122.7 if 1986 ? x ? 1988
C. f(x) = 0.75x - 1356.5 if 1982 ? x ? 1986
D. f(x) = 131.5 if 1982 ? x ? 1984
Answer: D
Mathematics
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A. -4?
B. 4?
C. 
D. 
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Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
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Graph using a graphing calculator.
- 
= 1
A. 
B. 
C. 
D. 
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Solve the problem.x varies inversely as y2, and x = 3 when y = 8. Find x when y = 2.
A. x = 4 B. x = 12 C. x = 36 D. x = 48
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