Solve the System by Using the Inverse of the Coefficient $$\begin{array} { l } 2 x _ { 1 } - 4 x _ { 2 } = - 2 \\3 x _ { 1 } + 4 x _ { 2 } = - 23\end{array}$$

question 2

Multiple Choice

Solve the system by using the inverse of the coefficient matrix.
- $$\begin{array} { l } 2 x _ { 1 } - 4 x _ { 2 } = - 2 \\3 x _ { 1 } + 4 x _ { 2 } = - 23\end{array}$$

• A) \(( - 2,5 )\)
• B) \(( 5,2 )\)
• C) \(( 2,5 )\)
• D) \(( - 5 , - 2 )\)

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Definitions:

Multiple-Forms Reliability

A type of reliability test where different forms of a test are administered to the same group of people, measuring the consistency of the results across the different forms.

Test-Retest Reliability

A measure of the consistency of a psychological test or assessment tool across multiple administrations.

Internal Consistency Reliability

A type of reliability that examines whether items on a test measure only one dimension, construct, or area of interest.

Interrater Reliability

The level of agreement among multiple observers or raters of the same phenomenon or measurement.