Matrices Vocabulary Flashcard - 2

Front

Solve for x: 4(1-x)+3x=-2(x+1)

Back

x = -6

Front

Which element is located in A23?

Back

2

Front

Solve for f: b=\frac{1}{4}(f - 12)

Back

f= 4b + 12

Front

Can these two matrices be multiplied together?

Back

No, because the number of columns in the first one is not the same as the number of rows in the second one.

Front

What is the location of 5?

Back

A21

Front

Define a matrix.

Back

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

Front

What is the determinant of a 2x2 matrix?

Back

For a matrix \begin{pmatrix} a & b \\ c & d \end{pmatrix}, 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 does it mean for matrices to be conformable for multiplication?

Back

Two matrices are conformable for multiplication if the number of columns in the first matrix equals the number of rows in the second matrix.

Front

What is the transpose of a matrix?

Back

The transpose of a matrix is obtained by swapping its rows and columns.