Find an equation of variation for the given situation.y varies inversely as x, and y = 12when x = 3
A. y = 36x
B. y = 
C. y = 
D. y = 
Answer: D
Mathematics
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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) = (1 - x)(9 - x)
A. Decreasing on (-?, 1) ? (9, ?); increasing on (1, 9) B. Decreasing on (-?, -1) ? (-9, ?); increasing on (-1, -9) C. Decreasing on (1, 9); increasing on (-?, 1) ? (9, ?) D. Decreasing on (-?, 1); increasing on (9, ?)
Mathematics
Solve.
= -8
A. x = -24 B. x = 24 C. x = -11 D. x = 11
Mathematics
Solve the inequality and graph the solution.7
? 4
A. 
B. 
C. 
D. 
Mathematics
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = -|x| 
A. 
B. 
C. 
D. 
Mathematics