Solve Nonlinear Systems by Addition
- $$\begin{array} { l } 7 x ^ { 2 } + y ^ { 2 } = 49 \\7 x ^ { 2 } - y ^ { 2 } = 49\end{array}$$

Multiple Choice

Solve Nonlinear Systems By Addition
- $$\begin{array} { l } 7 x ^ { 2 } + y ^ { 2 } = 49 \\7 x ^ { 2 } - y ^ { 2 } = 49\end{array}$$

A) $\{ ( \sqrt { 7 } , 0 ) , ( - \sqrt { 7 } , 0 ) \}$
B) $\{ ( 7,0 ) , ( - 7,0 ) \}$
C) $\{ ( 0 , \sqrt { 7 } ) , ( 0 , - \sqrt { 7 } ) \}$
D) $\{ ( 0,7 ) , ( 0 , - 7 ) \}$