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Re: how to graph x=3y-9 and 4x-2y=14

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theearthisround is not online. theearthisround
Joined: 04 Sep 2015
Total Posts: 1852
08 Feb 2016 08:47 AM
i know it seems like 6th grade stuff but i tried and i don't get it
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hobosrule is not online. hobosrule
Joined: 12 Dec 2008
Total Posts: 1960
08 Feb 2016 08:51 AM
i think u have to use a formula
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Reincarnated is not online. Reincarnated
Joined: 10 Nov 2008
Total Posts: 576
08 Feb 2016 08:51 AM
Idk, I quit math.
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PuNiShEr5665 is not online. PuNiShEr5665
Joined: 12 Aug 2009
Total Posts: 33713
08 Feb 2016 08:58 AM
x=3y-9

The formula is y=mx+b

The +b is the y-intercept. Yours is -9 so on the the y-axis, plot a point at (0, -9)
m is the slope. Since yours is 3, at your first point, move up three boxes, then right 1 box and plot a point. Then do it again so up another 3 and over 1. And stop when you can clearly see the line.
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thatGirlMaggy is not online. thatGirlMaggy
Joined: 23 Sep 2014
Total Posts: 7944
08 Feb 2016 08:58 AM
i'll give you the answers but I can't be bothered to write how to do it
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theearthisround is not online. theearthisround
Joined: 04 Sep 2015
Total Posts: 1852
08 Feb 2016 08:59 AM
@punish
the problem is the graphing part because the only points that intercept are at (0,0) and it has to intercept somewhere else but it's nkt
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PuNiShEr5665 is not online. PuNiShEr5665
Joined: 12 Aug 2009
Total Posts: 33713
08 Feb 2016 09:02 AM
Are both of the two you posted on the same graph?

The one I said does not intercept (0, 0).

The +b decides where it intercepts the y-axis so because its not just y=mx it has it bit somewhere other than (0, 0)
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