Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.f(x) = -4x2 + 8x + 2
A. minimum at (0, -1)
B. maximum at (-6, -1)
C. minimum at (-6, 0)
D. maximum: (1, 6)
Answer: D
Mathematics
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Find the area of the shaded region.
A. 10 B. 12.5 C. 7.5 D. 5
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Solve the problem.At time t ? 0, the velocity of a body moving along the s-axis is 
When is the body moving backward?
A. t > 6 B. 0 ? t < 1 C. 0 ? t < 6 D. 1 < t < 6
Mathematics
Solve the polynomial inequality. Express the solution in interval notation.x3 + 7x2 > x + 7
A. (-?, - 1) ? (1, 7) B. (- 7, -1) ? (1, ?) C. (-?, - 7) ? (-1, 1) D. (-1, 1) ? (7, ?)
Mathematics
Find the center and radius of the circle.6x2 + 6y2 = 36
A. Center: (0, 0), radius: 
B. Center: (0, 0), radius: 6
C. Center: (0, 0), radius: 36
D. Center: (6, 6), radius: 
Mathematics