Solve the Nonlinear System of Equations for Real Solutions $\left\{ \begin{array} { r } x ^ { 2 } + y ^ { 2 } = 65 \\4 x + 7 y = 0\end{array} \right.$

question 71

Multiple Choice

Solve the nonlinear system of equations for real solutions.
- $\left\{ \begin{array} { r } x ^ { 2 } + y ^ { 2 } = 65 \\4 x + 7 y = 0\end{array} \right.$

• A) \(( 7 , - 4 )\)
• B) \(( 7 , - 4 ) , ( - 7 , - 4 )\)
• C) \(( 7 , - 4 ) , ( - 7,4 )\)
• D) \(( 7,4 ) , ( - 7 , - 4 )\)

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Definitions:

pH Level

A measure of acidity or alkalinity of a solution, with 7 being neutral, values below 7 acidic, and values above 7 alkaline.

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