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grandma06
Sep 19, 2008, 07:50 PM
3x+4y=12 (0, ), ( ,o), (-4, )

Unknown008
Sep 20, 2008, 03:25 AM
Coordinates are in the form (x, y). You are given part of the coordinates, you just need to plug them in your equation to find the other coordinate.

For example, your first one, (0, ). It shows that x=0. Plugging it in the equation will eventually give you y=3.