The Total solution for NCERT class 6-12
A line passesthrough (x1, y1) and (h, k). If slope ofthe line is m, show that k – y1 =m (h – x1).
Given: the slope of the line is ‘m’
The slope of the line passing through (x1, y1)and (h, k) is (k – y1)/(h– x1)
So,
(k – y1)/(h– x1) = m
(k – y1)= m (h – x1)
Hence proved.