Decide If the Matrix Is in Row Echelon Form $$\left[ \begin{array} { c c | c } - 7 & 0 & 7 \\0 & 0 & 0\end{array} \right]$$

question 15

Multiple Choice

Decide if the matrix is in row echelon form.
$$\left[ \begin{array} { c c | c } - 7 & 0 & 7 \\0 & 0 & 0\end{array} \right]$$

• A) not in row echelon form
• B) row echelon form

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