Simplify the algebraic expression.3(4 - 9a) + 8(5a - 7)
A. 13a + 44
B. 13a - 44
C. - 13a + 44
D. - 13a - 44
Answer: B
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Factor completely. If a polynomial cannot be factored, say it is prime.x2 + x - 42
A. (x - 7)(x + 6) B. (x + 1)(x - 42) C. prime D. (x - 6)(x + 7)
Solve the problem.The price per unit of a product is $p and the number of units of the product is denoted by q. The demand function for this commodity is given by p = 
- 50. Describe the transformations needed to obtain the graph of this function from the graph of p = 
.
A. Stretch vertically by a factor of 20,000 and shift down 50 units. B. Stretch vertically by a factor of 20,000, reflect across the x-axis, and shift down 50 units. C. Stretch vertically by a factor of 20,000 and shift 50 units to the right. D. Shift up 20,000 units and shift 50 units to the right.
Graph the line passing through the given point and having the given slope.Through (-5, -10), m = 0
A. 
B. 
C. 
D. 
Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-?, -1); Decreasing on (-1, ?) B. Increasing on (-?, 1); Decreasing on (1, ?) C. Increasing on (-1, ?); Decreasing on (-?, -1) D. Increasing on (1, ?); Decreasing on (-?, 1)