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Systems of equations by graphical method. x+2y=7  2x+y=11



Sagot :

[tex]x+2y=7 \\ 2x+y=11 \\ \\ 2y=-x+7\ \ | \ divide \ each \ term \ by \ 2 \\y=-2x+11\\\\ y=-\frac{1}{2}x+\frac{7}{2}\\y=-2x+11 \\ \\ Answer : \ the \ two \ equations \ intersect \ at \ the \ point : \ (3,5)[/tex]


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