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August 22, 2014

August 22, 2014

Posted by **joshua** on Wednesday, January 5, 2011 at 9:17pm.

- Algebra -
**drwls**, Wednesday, January 5, 2011 at 10:10pmThe slope-intercept form is y = mx + b

7 = m*3 + b

3 = m*9 + b

Subtract second equation from the first, to eliminate the unknown b.

4 = -6m

m = -2/3

7 = -2 + b

b = 9

y = -(2/3)x + 9

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