Determine whether the slope of the line is positive, negative, zero, or undefined.
A. positive
B. zero
C. undefined
D. negative
Answer: B
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Factor the polynomial.w2 - 2w + 4 = 0
A. (w + 4)(w - 1) B. (w + 4)2 C. (w + 4)(w + 1) D. prime
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the decreasing-time algorithm to schedule this project with two processors, the total combined idle time of the two processors is
A. 5 hours. B. 1 hour. C. 7 hours. D. 3 hours. E. none of these
Solve the problem.Assume that the sales of a certain appliance dealer are approximated by a linear function. Suppose that sales were $13,500 in 1982 and $52,500 in 1987. Let 
represent 1982. Find the equation giving yearly sales 
.
A. S(x) = 39,000x + 52,500 B. S(x) = 7800x + 52,500 C. S(x) = 7800x + 13,500 D. S(x) = 39,000x + 13,500