
Carol H. answered 11/09/17
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Experienced Mathematics Tutor w/ Master's Degree in Math
I have developed my own formula to write the equation of a line when you are given two points. It is the following:
(y - y1)/(x - x1) = (y2 - y1)/(x2 - x1)
(y - 7)/(x - 3) = (16 - 7)/(6 - 3)
(y - 7)/(x - 3) = 9/3 = 3 Cross multiply
(y-7) = 3(x - 3)
y - 7 = 3x - 9
y = 3x - 2