Tell whether the graph opens upward or downward and whether the graph is wider, narrower, or the same as f(x) = x2.f(x) = -.8x2 + 2
A. Upward, wider
B. Downward, wider
C. Upward, narrower
D. Downward, narrower
Answer: B
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Provide an appropriate response.True or False: 6 is a rational number.
Fill in the blank(s) with the appropriate word(s).
A certain country's income distribution is described by the function
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Sketch the Lorentz curve for this function.
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Compute 
and interpret your results.
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A. 
The lowest 60 percent of the people receive 37.3 percent of the total income.
The lowest 80 percent of the people receive 64.9 percent of the total income.
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B.
The lowest 80 percent of the people receive 37.3 percent of the total income.
The lowest 60 percent of the people receive 64.9 percent of the total income.
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C.
The lowest 60 percent of the people receive 37.3 percent of the total income.
The lowest 80 percent of the people receive 64.9 percent of the total income.
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Use the two-stage method to solve.Maximizez = 3x1 + 2x2subject to:x1 + x2 = 5 4x1 + 2x2 ? 12 5x1 + 2x2 ? 16 x1 ? 0, x2 ? 0
A. Maximum is 15 for x1 = 5, x2 = 0 B. Maximum is 12 for x1 = 2, x2 = 3 C. Maximum is 13 for x1 = 3, x2 = 2 D. Maximum is 14 for x1 = 4, x2 = 1
Find the vertex.f(x) = -(x + 2)2 + 5
A. (5, -4) B. (- 5, -2) C. (-2, 5) D. (-5, 2)