Write the equation of the axis of symmetry.f(x) = -5x2 - 10x - 9
A. x = -1
B. x = 1
C. x = -4
D. x = 4
Answer: A
Mathematics
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Determine all critical points for the function.f(x) = x3 - 12x + 3
A. x = -2, x = 0, and x = 2 B. x = -2 and x = 2 C. x = 2 D. x = -2
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Using the derivative of f(x) given below, determine the intervals on which f(x) is increasing or decreasing.f'(x) = (x + 3)2 e-x
A. Never decreasing; increasing on (-?, 3) ? (3, ?) B. Never increasing; decreasing on (-?, -3) ? (-3, ?) C. Decreasing on (-?, -3); increasing on (-3, ?) D. Never decreasing; increasing on (-?, -3) ? (-3, ?)
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Add.864 + 654
A. 1420 B. 1518 C. 1320 D. 1418
Mathematics
Find the midpoint of the line segment formed by joining the points P1 and P2.P1 = (-8, -8); P2 = (3, 2)
A. (-5, -6)
B. 
C. 
D. (-11, -10)
Mathematics