Math

How would you graph an equation like x+y=4 or y-1=-1x-2?

I know you have to change the form, i just don't remember how to do it.

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  1. remember all you need to draw a straight line is 2 points, the intercepts are 2 good points to use

    I just showed you in a previous point how to find those intercepts
    x+y = 4
    let x = 0 --->y = 4 or the point (0,4)
    let y = 0 ---> x = 4 or the point(4,0)
    piece of cake!!!

    y-1 = -x - 2
    x+y = -1
    do this the same way

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    posted by Reiny

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