As far as the second question, this is the exact question:
In the matrix of a system of linear equations, suppose one of the rows is a multiple of another. What can you say about the row-reduced form of the matrix?
a.The row-reduced matrix has two columns of zeros.
b.The row-reduced matrix has a row of ones.
c.The row-reduced matrix has a row of zeros.
d.The row-reduced matrix has a column of zeros.
e.The row-reduced matrix has two rows of zero
I believe it is b since it would make no sense for them to cancel out if they are multiples.
In the matrix of a system of linear equations, suppose one of the rows is a multiple of another. What can you say about the row-reduced form of the matrix?
a.The row-reduced matrix has two columns of zeros.
b.The row-reduced matrix has a row of ones.
c.The row-reduced matrix has a row of zeros.
d.The row-reduced matrix has a column of zeros.
e.The row-reduced matrix has two rows of zero
I believe it is b since it would make no sense for them to cancel out if they are multiples.