Midterm Review #1

Front

Which element is located in A23?

Back

2

Front

What are the dimensions of this matrix?

Back

3 x 2

Front

What is the determinant of this matrix?

Back

5

Front

Write the following system of equations as an augmented matrix.

Back

[ [a, b, c], [d, e, f] ] (Example format)

Front

What is the determinant of this matrix?

Back

5

Front

Define a matrix.

Back

A matrix is a rectangular array of numbers arranged in rows and columns.

Front

What is an augmented matrix?

Back

An augmented matrix is a matrix that includes the coefficients and constants of a system of equations.

Front

How do you calculate the determinant of a 2x2 matrix?

Back

For a matrix [[a, b], [c, d]], the determinant is ad - bc.

Front

What is the identity matrix?

Back

An identity matrix is a square matrix with ones on the diagonal and zeros elsewhere.

Front

What is a scalar multiplication of a matrix?

Back

Scalar multiplication involves multiplying each element of a matrix by a scalar (a constant).