!algebra!

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SRH17489
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!algebra!

Post by SRH17489 » Wed Sep 24, 2003 6:44 pm

Ok... I need help with setting up charts for my alegebra homework... Can someone please explain how to??
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She
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Re: !algebra!

Post by She » Wed Sep 24, 2003 7:24 pm

I'm assuming you mean like T-tables, with X on one side and Y on the other, and a function like Y=2x+3?



In that case, you set up a nice little T-table chart with X on one side and Y on the other.



X | Y

--------

|

|



Like that. Then start plugging in values for X, i.e.:



Y=2x+3

Y=2(1)+3

Y=2+3

Y=5



So that means when X is one, Y is 5. So 1 goes in the X column, 5 goes in the Y column.



Then do the next one:



Y=2x+3

Y=2(2)+3

Y=4+3

Y=7



So when X is 2, Y is 7. 2 in the X column, 7 in the Y column.



Just keep filling it in. Think of it as a machine: you put in one number, and the equasion does these things to it and spits out a new number--Y. I think that's what you're talking about?
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