Which of the following are valid row operations for augmented matrices?

switch positions of two rows.

add elements of one row to another row.

multiply elements of one row by another row.

multiply elements of one row by a scalar.

raise elements of a row to a power.

The following options are correct

Matrices are ways of arranging numbers in rows and columns.

When carrying out the row reduction on a given matrix, the following operations are carried out

Based on the explanation above, the following options are correct

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Step-by-step explanation:

In general, each row represents a linear equation. The rules of equality apply. They allow you to multiply both sides of the equation by a scalar, add equal values to each side of the equation (add one row to another). Rearranging the sequence of equations (swapping rows) does not change the system or its solution.

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step-by-step explanation:

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range is infinite on both x and y axis positive and negative

step-by-step explanation: