Use the graph of y = ax2 + bx + c to solve the quadratic equation or inequality.ax2 + bx + c < 0
A. -3 < x < 3
B. -3 ? x ? 3
C. 3 < x < 3
D. x < -3 or x > 3
Answer: A
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For an election with 4 candidates (A, B, C, and D), we have the following preference schedule:
Using the plurality-with-elimination method, which candidate is eliminated immediately before the winner of the election?
A. A B. B C. C D. D E. none of these
Find the missing expression.
+ 
= 
A. 35x - 4 B. 9x - 2 C. 35x - 2 D. 9x + 2
Solve the equation by completing the square.x2 + 3x - 9 = 0
A. {-3 - 3
, -3 + 3
}
B. 
C. 
D. 
Solve the problem.A farmer has 1600 yards of fencing to enclose a rectangular garden. Express the area A of the rectangle as a function of the width x of the rectangle. What is the domain of A?
A. A(x) = -x2 + 800x; {x|0 < x < 800} B. A(x) = -x2 + 1600x; {x|0 < x < 1600} C. A(x) = -x2 + 800x; {x|0 < x < 1600} D. A(x) = x2 + 800x; {x|0 < x < 800}