Problem 10. (1 point) The linear system 2x3 2x3 X2 4x1 + 4x2 + 4x3 = is not in echelon form. - || || || -4 -9 0 Begin by

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Problem 10 1 Point The Linear System 2x3 2x3 X2 4x1 4x2 4x3 Is Not In Echelon Form 4 9 0 Begin By 1 (59.51 KiB) Viewed 43 times

Problem 10. (1 point) The linear system 2x3 2x3 X2 4x1 + 4x2 + 4x3 = is not in echelon form. - || || || -4 -9 0 Begin by choosing which of the following statements are correct. If there is more than one reason why the system is not in echelon form, type the letters as a comma separated list. A. The system is not in echelon form because a variable is the leading variable of two or more equations. B. The system is not in echelon form because the system is not organized in a descending "stair step" pattern so that the index of the leading variables increases from the top to bottom. C. The system is not in echelon form because not every equation has a leading variable. Correct Letter(s): Now write the system in echelon form. Equation 1: Equation 2: Equation 3: Finally, solve the system. Use x1, x2, and x3 to enter the vari- Problem 12. (1 point) Find the set of solutions for the linear system 2x₁ + 4x2 4x3 = 14 4x2 + 8x3 = -10 Use s1, s2, etc. for the free variables if necessary. -——) (x1, x2,13)= Answer(s) submitted: (incorrect) Problem 13. (1 point) Find the set of solutions for the linear system 4x1 + 5x2 X3 + X4 2x2 +8x3 + 11x4 (X1, X2, X3, X4) = Answer(s) submitted: ### E = 19 -6 -14 2x3 + X4 If your answer includes any arbitrary parameters name them s1. s2, etc., as needed.