Lines and Slope  Chameleon Home  Ask Dr. Math 

y = mx + b We just figured out that a line with a slope of 3 and a yintercept of 2 has the equation The blue line has a slope of 1/3 and a Let's guess that the equation for the blue line will have the same form as before. That means that to get y, we should multiply x by the slope and add the Multiplying x by the slope and adding the Let's try to write "To get y, multiply x by the slope and add the y = slope*x + yintercept Most people call the slope m and the Now we can write an equation for almost any line! All we need to know is its slope and its 
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