Solve Nonlinear Systems by Substitution
- $$\begin{array} { l } x y = 90 \\x ^ { 2 } + y ^ { 2 } = 181\end{array}$$

question 151

Multiple Choice

Solve Nonlinear Systems By Substitution
- $$\begin{array} { l } x y = 90 \\x ^ { 2 } + y ^ { 2 } = 181\end{array}$$

• A) \(\{ ( 9,10 ) , ( - 9 , - 10 ) , ( 10,9 ) , ( - 10 , - 9 ) \}\)
• B) \(\{ ( 9,10 ) , ( - 9 , - 10 ) , ( 9 , - 10 ) , ( - 9,10 ) \}\)
• C) \(\{ ( 9,10 ) , ( 10,9 ) , ( 9 , - 10 ) , ( 10 , - 9 ) \}\)
• D) \(\{ ( - 9 , - 10 ) , ( - 10 , - 9 ) , ( - 9,10 ) , ( - 10,9 ) \}\)

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