math homework, help..? |
 Feb 20 2005, 05:17 PM
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Newbie  Group: Member Posts: 7 Joined: Feb 2005 Member No: 96,292  |
Ok, I was sick for a while and I talked to the teacher about it. He explained it to me but he is a horrible explainer so I never really got what he said. So he told me to look in the text book and I still don't get it.. Do you think you can help?
graph each system of equations using the coordinate plane provided. Then determine whether the system has one solution, no solution, or infinitely man solutions. If the solution has one, name it. x+y=3 x-y=3 2x-y=6 4x-2y=12 x+y=0 x+y=2 Do you think you could do two of those and make a graph of it on photoshop for me? You know, like make a grid and plot the lines? I just need examples so I can figure out the rest. There is a whole sheet of the things I need to do.. |
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Feb 25 2005, 07:12 PM
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#2
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Senior Member Group: Member Posts: 48 Joined: Feb 2005 Member No: 95,036 |
Oooo i'm learning this in AlgII alsooooo. I feel so useful. Anyways.. everyone's directions here seem pretty right.. buttttt I have the ultimate secret. If you have a TI calculator (82+ or something*) you can put the equation in "Y=" form.. then "graph" press "2nd+Trace" "number 5" then press "enter" three times. or until it shows the intersection.. veryyyy useful on tests.
Parallel lines have no solution. Coinciding lines have infinite solutions. Intersecting lines have one solution. Good luck 
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Posts in this topic
missmissy math homework Feb 20 2005, 05:17 PM
avalon* well i know that you need to set everything equal ... Feb 20 2005, 05:21 PM runforfun529 x+y=3
x-y=3
2x-y=6
4x-2y=12
x+y=0
x+y=2
What y... Feb 20 2005, 11:04 PM wind&fire look here ill do an example for you
4x-2y=12
sinc... Feb 21 2005, 04:44 AM
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