Question 426555
This is one way to do it:

(1,2), m = 1/3


y - y1 = m(x - x1) is point-slope form


y - 2 = 1/3(x - 1) {substituted point and slope into point-slope form}
y - 2 = 1/3x - 1/3 {used distributive property}
y = 1/3x + 5/3 {added 2 to both sides}
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