SOLUTION: i dont get how to solve or use y=mxtb

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Question 162746This question is from textbook
: i dont get how to solve or use y=mxtb This question is from textbook

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Read this --> http://www.purplemath.com/modules/strtlneq.htm
Lines in the form y+=+mx+%2B+b+
Explicity provides both the slope of the line (m) and one point on that line (0,b).
From there you can plot that point (0,b) and then use the slope to find another point (go 'up/down y' and 'over/back x' where m = deltay/deltax). Once you have two points, plotting is simple.
You'll need to know this formula and how to use it. So getting it 'right' now is important.