Solve the System by Graphing If Possible $$\left\{ \begin{array} { l } x - y = 8 \\2 x + y = 4\end{array} \right.$$

question 164

Multiple Choice

Solve the system by graphing if possible. $$\left\{ \begin{array} { l } x - y = 8 \\2 x + y = 4\end{array} \right.$$

• A) \(x = 4 , y = 4\)
• B) \(x = 4 , y = - 4\)
• C) \(x = - 4 , y = - 4\)
• D) inconsistent system
• E) dependent system

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Definitions:

Demand Curve

A graphical representation of the relationship between the price of a good or service and the quantity demanded for a given period of time.

Quantity Demanded

The overall quantity of a good or service buyers intend and can afford to acquire at an established price.

Substitutes

Products or services that can be used in place of each other, offering consumers choices in the marketplace.

Negative Relationship

A situation or condition in which an increase in one variable leads to a decrease in another variable.