An Augmented Matrix That Represents a System of Linear Equations $\left[\begin{array}{llll}1&0&0&:2\\0 & 1 & 0 & :3 \\0 & 0 & 1 & :4\end{array}\right]$

question 48

Multiple Choice

An augmented matrix that represents a system of linear equations (in variables x,y,and z) has been reduced using Gauss-Jordan elimination.Write the solution represented by the augmented matrix. $\left[\begin{array}{llll}1&0&0&:2\\0 & 1 & 0 & :3 \\0 & 0 & 1 & :4\end{array}\right]$

• A)x = 0,y = 0,z = 0
• B)x = 2x,y = 4y,z = 3z
• C)x = 2,y = 3,z = 4
• D)x = -2,y = -3,z = -4
• E)x = 2,y = 0,z = 0

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