I do not know how to solve and graph linear systems such as:

x+y=2
-3x+4y=36

solve by graphing. X - 2y = 7, -5x + y = 10

solve by graphing. X - 2y =7, -5x + y = 10

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Originally Posted by alg2_dummie

I do not know how to solve and graph linear systems such as:

x+y=2
-3x+4y=36

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First of all, draw the graphs on a suitable graph paper as accurately as you can. I suggest a range of 0 to 10 on the y-axis and -5 to 2 on the x-axis.

Where the two lines meet, give the coordinates of that point of intersection. That is the answer of your question. Note that the answer is in the form (x, y)

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Originally Posted by peeluu

solve by graphing. x - 2y =7, -5x + y = 10

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Draw your graphs. The solution is given by the point where they meet.

Quote:

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Originally Posted by alg2_dummie

I do not know how to solve and graph linear systems such as: x+y=2 ; -3x+4y=36

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Step one : solve the values of X and Y (x+y=2 ; so 3x+3y=6 ; while -3x+4y=36) Add together to solve.
Step two : draw graph using X and Y values.
Step three : measure resulting line to solve.

:)