EDGE Math 8

Click "Yes" if the given ordered pair is a solution to the system of linear equations in two variables; otherwise, click "No."

{\begin{array}{l} x + y = 5 \\ x + 2 y = 9 \end{array}

ordered pair: (1, 4)

Yes

Answer: Yes

{\begin{array}{l} x - y = 6 \\ 2 x + y = 9 \end{array}

ordered pair: (5, −1)

Yes

Answer: Yes

{\begin{array}{l} 3 x + y = 10 \\ x + y = 7 \end{array}

ordered pair: (2, 4)

Yes

Answer: No; the given ordered pair does not satisfy the second equation.

{\begin{array}{l} 2 x + y = 3 \\ x - y = 3 \end{array}

ordered pair: (2, −1)

Yes

Answer: Yes

{\begin{array}{l} 4 x + 5 y = 9 \\ x - y = 0 \end{array}

ordered pair: (1, 1)

Yes

Answer: Yes

{\begin{array}{l} 2 x - y = - 1 \\ x - \frac{1}{2} y = 0 \end{array}

ordered pair: (−1, −2)

Yes

Answer: No; the given ordered pair does not satisfy the first equation.

/ 6