Find a system of inequalities with the given graph.
A. y ? -x + 8
y ? 2
x ? 0
y ? 0
B. y ? -x + 8
y ? 2
y ? x
C. y ? -x + 8
y ? 2
y ? x
D. y ? -x + 8
y ? 2
y ? x
Answer: D
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Graph the inequality.5x + y ? 1
A. 
B. 
C. 
D. 
Find the maximum or minimum value of the given objective function of a linear programming problem. The figure illustrates the graph of feasible points. 
Objective Function: z = -5x - yFind maximum.
A. maximum: -22 B. maximum: -18 C. maximum: -15 D. no maximum
Find an equation y = mx + b that models the quantity y after x units of time.A quantity y is initially 40 and increases at a rate of 5 per minute.
A. y = 40x + 5 B. y = 40x - 5 C. y = 5x + 40 D. y = -5x + 40
Decide whether the two events listed are independent.A fair die is rolled twice. E is the event that the sum of the two rolls is eight and T is the event that three appears on the first roll.
A. No B. Yes