Find an equation for the graph.
A. y = 4 cos 
B. y = 3 cos (4?x)
C. y = 4 cos (3?x)
D. y = 3 cos 
Answer: A
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Solve the problem.A business is owned by three people. The first owns 
of the business and the second owns 
of the business. What fractional part of the business is owned by the third person?
A. 
B. 
C. 
D. 
Solve the problem.The median household income of single mothers is shown in the bar graph. Use the information given for the years 1995 and 2000, letting x = 5 represent 1995, x = 10 represent 2000, and y represent the median income, to write an equation in slope-intercept form that models the data.
A. y = 1555.4x + 30,502 B. y = 1555.4x + 22,725 C. y = -1555.4x + 14,948 D. y = 1555.4x + 14,948
Solve the formula for the specified variable.A = 
h(b1 + b2) for b1
A. b1 = 
B. b1 = 
C. b1 = 
D. b1 = 
Determine the upper and lower bounds on the zeros of the given function.G(x) = 4x3 - 8x - 1
A. upper bound: 4; lower bound: -2 B. upper bound: 3; lower bound: -2 C. upper bound: 2; lower bound: -2 D. upper bound: 1; lower bound: -1