Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-?, 0); Decreasing on (0, ?)
B. Decreasing on (-?, ?)
C. Increasing on (0, ?); Decreasing on (-?, 0)
D. Increasing on (-?, ?)
Answer: D
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Solve the equation.log (x - 9) = 1 - log x
A. -10 B. 10 C. -1, 10 D. -10, 1
Solve the system by elimination.-6x + 9y = 0 -2x - 5y = 0
A. {(1, 3)} B. {(0, 0)} C. {(0, 3)} D. ?
Find an explicit rule for the nth term of the sequence.9, 36, 144, 576, ...
A. an = 9 ? 4n-1 B. an = 4 ? 9n-1 C. an = 9 ? 4n D. an = 9 ? 4n+1
Determine the degree of each term of the polynomial.12x4 - 7w3 + 3w - 4y5 + 3
A. 12x4: degree 48; -7w3: degree -21; 3w: degree 1; -4y5: degree -20; 
B. 12x4: degree 12; -7w3: degree -7; 3w: degree 3; -4y5: degree -4; 
C. 12x4: degree 4; -7w3: degree 3; 3w: degree 1; -4y5: degree 5; 
D. 12x4: degree 4; -7w3: degree 3; 3w: degree 1; -4y5: degree 5; 