Work out gradient so change in y/change in x=8-2/6-4=3 So m=3 where m is the slope. As you go across by 1 you go up by 3 I think you would use y-y1=m(x-x1) Using (4,2) =y-2=3(x-4) y-2=3x-12 y=3x-10
The equation of the line passing through the points (4, 2) and (6, 8) is found by calculating the slope and using the point-slope form of the equation. The calculated slope is 3, leading to the equation y = 3 x − 10 . This equation describes the relationship between x and y for the line determined by the two points.
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