Choose the graph that represents the given function without using a graphing utility.f(x) = 
A. 
B. 
C. 
D. 
Answer: C
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Use Method II to simplify the complex rational expression.
A. 
B. 
C. 
D. 
Solve the problem.A group of 6 people wants to buy a boat. The boat costs $858. If they all pay the same amount, how much is each person's share?
A. $133 B. $153 C. $143 D. $122
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 + 8y = 8x + 40
A. vertex: (-7, -4)
focus: (-9, -4)
directrix: x = -5
B. vertex: (-7, -4)
focus: (-7, -6)
directrix: y = -2
C. vertex: (-7, -4)
focus: (-5, -4)
directrix: x = -9
D. vertex: (-7, -4)
focus: (-7, -2)
directrix: y = -6
Solve.It is estimated that y, the number of items of a particular commodity (in millions) sold in the United States in year x, where x represents the number of years since 2000, is given by the formula 
That is, 
represents 2000, 
represents 2001, and so on. According to the formula, how many items sold in 2009?
A. 2.82 million items B. 21.82 million items C. 42.48 million items D. 19.92 million items