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January 29, 2015

January 29, 2015

Posted by **Dawn** on Tuesday, May 26, 2009 at 5:53pm.

x y

0 3

1 5

2 7

3 9

4 11

I know how to answer a question like "use an equation to figure out Y when X is..." but how do you figure do " figure out X when Y is" ?

I konw that the formula is y=mx+b

but i don't know how to do it

thanks

- math -
**bobpursley**, Tuesday, May 26, 2009 at 5:56pmm equals the change in y for each change in x. As I see the data, y changes 2 for each unit x changes. M=2

b is what y is when x is zero. Get that from the table.

- math -
**Dawn**, Tuesday, May 26, 2009 at 6:38pmoohh okay.

thanks

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