Scalar matrix multiplication

The  exercise appears under the Algebra II Math Mission and Precalculus Math Mission. This exercise introduces the idea of matrices.

Types of Problems
There is one type of problem in this exercise:


 * 1) Multiply a scalar by a matrix - A matrix and a scalar quantity or a number are given. The student is required to multiply both together and type the resulting matrix in the space given in the right.

Strategies
Knowledge of multiply numbers together or by fractions will assure success.
 * 1) To multiply a matrix by a scalar, multiply each of the entries of the matrix by the scalar quantity.
 * 2) Remember to recheck your answer though as students tend to make mistakes in the positive and negative signs.

Real-life Applications

 * 1) Matrix mathematics applies to several branches of science, as well as different mathematical disciplines.
 * 2) Matrix arithmetic helps us calculate the electrical properties of a circuit, with voltage, amperage, resistance, etc.