Question

Explain to a younger student about a matrix. Include names of the parts of a matrix and a reason why the students would want to use a matrix.

Answer 1

A matrix (in plural it's called matrices) is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

The horizontal line of entries is called rows while and vertical lines of entries in a matrix is called columns.

The size of a matrix is defined by the number of rows and columns that it contains.