Solve the System by the Substitution Method $x y = 1$

question 109

Multiple Choice

Solve the system by the substitution method.
- $x y = 1$ $48 x - y = - 2$

• A) \(\left\{ \left( - 6 , - \frac { 1 } { 6 } \right) , \left( 8 , \frac { 1 } { 8 } \right) \right\}\)
• B) \(\{ ( 6 , - 6 ) , ( - 8,8 ) \}\)
• C) \(\left\{ \left( - \frac { 1 } { 6 } , - 6 \right) , \left( \frac { 1 } { 8 } , 8 \right) \right\}\)
• D) \(\left\{ \left( \frac { 1 } { 8 } , 8 \right) \right\}\)

---

Definitions:

Margin Of Safety

Margin of safety represents the difference between actual sales and the break-even point, indicating the buffer a company has before it incurs a loss.

Percentage Of Sales

A method or analysis tool that expresses components of a financial statement as a percentage of total sales.

Variable Expense

Costs that fluctuate with the level of production or business activity, such as raw material costs and shipping fees.

Break-Even

Break-even is the point at which total revenues equal total costs, resulting in no net profit or loss, indicating the volume of sales needed to cover costs.