SOLUTION: Determine whether this statement "makes sense" or "does not make sense" and explain your reasoning. I use y = mx + b to write equations of lines passing through two points when nei

Question 224099: Determine whether this statement "makes sense" or "does not make sense" and explain your reasoning. I use y = mx + b to write equations of lines passing through two points when neither contains the y-intercept.
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
You could say that this does NOT make sense. It would make sense to use ymx+b if one of the points IS the y intercept (and the slope could be easily calculated!). Most people use the slope formula and the point slope formula .

On the other hand, a lot of people (including myself!) DO use the y=mx+b formula to find the equation of a line, by using the slope formula (see above) to find the slope, and then solving for b.

Does that help???

R^2

Dr. Robert J. Rapalje
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