UCSS Math I 3.3.1 Example 1

Find the sum of the following matrices and determine the dimensions of the sum.

[list=1] [*]Determine whether the matrices can be added. [*]Add each pair of corresponding entries. [*]Determine the dimensions of the sum. [/list] This applet is provided by Walch Education as supplemental material for the [i]UCSS Secondary Math I[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.

UCSS Math I 3.3.2 Example 5

Use matrices to solve the following system of equations. [math]\begin{cases} 4x-2y=0 \\ 3x+y=5 \end{cases}[/math]

[list=1] [*]Write the system as an equation of matrices. [*]Find the inverse matrix of the given matrix. [*]Multiply both sides of the equation by the inverse matrix. [*]Multiply the matrices using matrix multiplication. [*]Simplify the equation. [*]State the solution to the system of equations. [/list] This applet is provided by Walch Education as supplemental material for the [i]UCSS Secondary Math I[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.

Calculate Determinant of 2x2 Matrix

Input elements of matrix

UCSS Math II 3B.5.2 Example 1

Determine if the given matrix has an inverse.

[list=1] [*]Find the determinant of the matrix. [*]Determine if the matrix has an inverse. [/list] This applet is provided by Walch Education as supplemental material for the [i]UCSS Secondary Math II[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.

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