Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient 
of x2 should be positive or negative. DENTAL FLOSS USE 
Years since 1990
A. Linear; positive
B. Quadratic; negative
C. Linear; negative
D. Quadratic; positive
Answer: D
Mathematics
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Write the number as a product of prime factors.175
A. 25 × 7 B. 72 C. 52 × 7 D. 25 × 5
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Graph the function over a one-period interval.y = - 
sin 2
A. 
B. 
C. 
D. 
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Find the exact value of the expression. Do not use a calculator.csc ?, if sin ? = - 
and cos ? < 0
A. 
B. 
C. - 
D. - 
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Solve the problem.There were 28,000 people at a ball game in Los Angeles. The day's receipts were $208,000. How many people paid $14 for reserved seats and how many paid $6 for general admission?
A. 18,000 paid $14 and 10,000 paid $6 B. 10,000 paid $14 and 18,000 paid $6 C. 5000 paid $14 and 23,000 paid $6 D. 23,000 paid $14 and 5000 paid $6
Mathematics