Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable.-3x - y - 8z = -64 4x + 9z = 74 8y + z = 14
A. {(5, 1, 6)}
B. ?
C. {(-5, 1, 10)}
D. {(5, 6, 1)}
Answer: A
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Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing.y = 6
A. Increasing -? < x < ?
B. Decreasing 0 ? x < ?
C. Decreasing 0 ? x < ?
D. Increasing 0 ? x < ?
Find the value of the function.Given f(x) = 3x2 - 4x - 2, find f(-6).
A. 102 B. 132 C. 4 D. 130
Use the discriminant to determine the number and type of solutions for the equation.x2 - 7x - 1 = 0
A. Two complex-number solutions B. Two real-number solutions C. One real-number solution
Provide an appropriate response.Is it possible to factor the expression 4x6(y + 5) + 9(y - 5)? If so, factor it.
A. Yes: (4x6 + 9)(y - 5) B. No C. Yes: (4x6 + 9)(y + 5) D. Yes: (4x6 + 9 + 5 + y)