Solve the System by the Method of Elimination $$\left\{ \begin{array} { c } 4 x + 5 y = - 71 \\x - y = - 2\end{array} \right.$$

question 40

Multiple Choice

Solve the system by the method of elimination.
$$\left\{ \begin{array} { c } 4 x + 5 y = - 71 \\x - y = - 2\end{array} \right.$$

• A) \(( - 6 , - 4 )\)
• B) \(( - 9 , - 7 )\)
• C) \(\left( - \frac { 61 } { 3 } , \frac { 52 } { 3 } \right)\)
• D) \(\left( 8 , - \frac { 111 } { 4 } \right)\)
• E) inconsistent

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Definitions:

Intensive Single-Subject Designs

Research designs focusing on detailed examination and analysis of a single subject or case, often used in clinical or experimental settings.

Single-Subject Experimental Designs

Research designs focusing on the responses of a single participant to document the effectiveness of a treatment or intervention.

Independent Variable

A variable manipulated by the researcher to observe its effect on the dependent variable in an experimental study.

Qualitative Data

Non-numeric information that describes qualities or characteristics and is often collected through interviews, observations, or open-ended questions.