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

question 252

Multiple Choice

Solve the system by the substitution method.
- $$x y = 1$$
$4 x - y = - 3$

• A) \(\left\{ \left( \frac { 1 } { 4 } , 4 \right) , ( - 1 , - 1 ) \right\}\)
• B) \(\left\{ \left( 4 , \frac { 1 } { 4 } \right) , ( - 1 , - 1 ) \right\}\)
• C) \(\{ ( - 4,4 ) , ( 1 , - 1 ) \}\)
• D) \(\{ ( - 1 , - 1 ) \}\)

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