Graph the polynomial function. f(x) = x4 - 4x2
A. 
B. 
C. 
D. 
Answer: C
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For the function f, use composition of functions to show that f-1 is as given.
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What will be an ideal response?
Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.f(x) = x3 + 8x2 - x - 8
A. -1, multiplicity 1, crosses the x-axis; 1, multiplicity 1, crosses the x-axis; - 8, multiplicity 1, crosses the x-axis. B. -1, multiplicity 1, touches the x-axis and turns around; 1, multiplicity 1, touches the x-axis and turns around; - 8, multiplicity 1, touches the x-axis and turns around C. 8, multiplicity 1, crosses the x-axis; 1, multiplicity 1, crosses the x-axis; - 8, multiplicity 1, crosses the x-axis. D. 1, multiplicity 2, touches the x-axis and turns around; - 8, multiplicity 1, crosses the x-axis.
The primal problem and the final tableau in the solution of the primal problem are given. Use the final tableau to solve the dual problem.Primal problem:Maximize 6x1 + 7x2subject to 2x1 + 3x2 ? 12 2x1 + x2 ? 8and x1 ? 0, x2 ? 0Final tableau in solution to primal problem: x1 x2 x3 x4 M 
A. Maximum = 32 when y1 = 2 and y2 = 1 B. Minimum = 0 when y1 = 0 and y2 = 0 C. Minimum = 32 when y1 = 2 and y2 = 3 D. Minimum = 32 when y1 = 2 and y2 = 1
Multiply.1.9y2(5y2 - y - 6)
A. 9.5y4 + 1.9y3 + 11.4y2 B. 6.9y4 - 1.9y3 - 7.9y2 C. 9.5y4 - 1.9y3 - 11.4y2 D. 9.5y4 - 1.9y2 - 11.4y