Find the equation that the given graph represents.
A. P(x) = -x6 + 10x4 - 100x2 - 100
B. P(x) = x5 - 10x4 - 100x2 + 100
C. P(x) = -x6 + 20x4 - 100x2 + 100
D. P(x) = -x5 - 20x4 - 100x2 + 100x
Answer: C
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Solve the system.
A. (9, 0)
B. inconsistent (no solution)
C. y = - 
+ 3, where x is any real number
D. (0, 0)
Solve the problem.
Crafty Bill's Cool Car Sales opened as a used car sales lot in 1991. The graph shows the number of cars sold as a function of time. What is the approximate number of cars sold in 1993?
A. 350 B. 400 C. 500 D. 550
Solve for the indicated variable. Assume the variable you are solving for must be greater than 0.M = ?r2hd, for r
A. r = 
B. r = 
C. r = 
D. r = 
Find a system of inequalities with the given graph.
A. y ? x + 5 y ? 3x - 3 x < 0 y < 0 B. y ? -x + 5 y ? 3x - 3 x ? 0 y ? 0 C. y < -x + 5 y > 3x - 3 x > 0 y > 0 D. y ? -x + 5 y ? 3x - 3 x ? 0 y ? 0