For example, your slope (m) is 3 and your point (a,b) is 9,10 Your new equation would look like this I hope this made sense! M is the coefficient on this mx term right over here and m would represent the slope. If the slope was x, then what happens to the variable x that's in a linear equation X can't be used twice to represent different things in the same equation
M was selected for slope many many years ago to represent slope. For example, it the equation was y=2x+4, the slope would be 2 because it is the number that is in the place of the m. So the way that it's written right now, this is slope intercept form It's written in the form y is equal to mx plus b, where m in this case is 2/3 and b is 4/7.
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