Determine where the given function is increasing and where it is decreasing. f(x) = 
A. Increasing on (-?, 0], decreasing on [0, ?)
B. Decreasing on (-?, 0], increasing on [0, ?)
C. Decreasing on (-?, ?)
D. Increasing on (-?, ?)
Answer: A
Mathematics
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Find the first 4 terms of the recursively defined sequence.a1 = -9, an + 1 = an + 5
A. 0, 5, 10, 15 B. -9, -4, 1, 6 C. -9, 5, 10, 15 D. -4, 1, 6, 11
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Evaluate the algebraic expression for the given value(s) of the variable(s).-6x - 4 ; x = -1
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Use Cramer's rule to solve the linear system.6x + 2y - z = 19 x + 2y + 7z = 719x + y + z = 47
A. (5, 0, 9) B. (4, -2, -9) C. (2, 9, 2) D. (4, 2, 9)
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