The given equation of line is x – 7y + 5 = 0. or, y = 1/7 X + 5/7
which is of the form y = mx + c
∴Slope of the given line = 1/7
The slope of the line perpendicular to the line having a slope of 1/7 is m = - 1/(1/7) = -7
The equation of the line with slope –7 and x-intercept 3 is given by y = m (x – d)
⇒ y = –7 (x – 3)
⇒ y = –7x + 21
⇒ 7x + y = 21
