Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = 2x2 + 8x + 6
A. Increasing on (-2, ?); decreasing on (-?, -2)
B. Increasing on (2, ?); decreasing on (-?, 2)
C. Increasing on (-4, ?); decreasing on (-?, -4)
D. Increasing on (8, ?); decreasing on (-?, 8)
Answer: A
Mathematics
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A. 1
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Fill in the blank(s) with the appropriate word(s).
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List the intercepts for the graph of the equation.y = x2 + 9
A. (0, 9) B. (9, 0) C. (0, 9), (-3, 0), (3, 0) D. (9, 0), (0, -3), (0, 3)
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Solve the system of linear equations.
x + 
y = 4
x - 2y = 21
A. (6, -8)
B. (-6, 8)
C. No solutions
D. 
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