Solve system of eqns by graphing: 3x + y = 5, -2x + 3y = 4

[anniefo52]

I need help with graphing equations I am really struggling with this. It says solve by graphing.

3x+y=5
-2x+3y=4

 

[skeeter]

convert each equation to slope-intercept form (y = mx+b), then graph the line on graph paper like you were taught in class.

the coordinates of the intersection of the two lines is the solution of the system.

 

[galactus]

Here's the way I like to do them.

For each equation, set x=0 and solve for y, plot it. You will have (0,y), 2 of them

For each equation, set y=0, solve for x, plot it. You will have (x,0), 2 of them.

Connect the dots. You will have two intersecting lines. As Skeeter said, where they intersect is the solution.