You can put this solution on YOUR website! find the equation
slope= 3, passes through (1,2)
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y-y1 = m*(x-x1) where (x1,y1) is (1,2) and m is the slope
y-2 = 3*(x-1)
y-2 = 3x-3
y = 3x - 1 (slope-intercept form)
3x - y = 1 (standard form)