February 21, 2017

Homework Help: Math

Posted by Jazz on Thursday, January 17, 2008 at 8:01pm.

I cannot remember how to find the slope of a line when you are given two points.
Here is the problem.

The slope of a line through (2,1) and (5,n) is 3. n=___

I ended up with -2. But I don't think that is the right answer. I put the points in slope-intercept form and solved for y, which would end up being n, right?
y(or n)=5x+3
y(1)=2x+3 [x equals -1 right?]

I'm so confused. . . .

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