Posted by **Susan** on Thursday, February 24, 2011 at 10:05pm.

In the graphing problem 3y=2x-9 m=? b=? What do m and b stand for? How do I solve?

- Algebra -
**Helper**, Thursday, February 24, 2011 at 10:24pm
The slope-intercept form of an equation is,

y = mx + b

m = the slope

b = the y-intercept

You need to solve your equation for y, for the equation to be in the slope-intercept form.

3y = 2x - 9

Divide both sides by 3,

y = 2/3 x - 9/3

y = 2/3 x - 3

Now, the equation is in the slope-intercept form and you can easily find m and b.

y = mx + b

Your equation,

y = 2/3 x - 3

y = 2/3 x + (-3)

m = ?

b = ?

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