Q31 of 59 Page 178

The distance between the lines y = mx + c1 and y = mx + c2 is

Given equations are y = mx + c1 …(i)

and y = mx + c2 …(ii)


Firstly, we find the slope of eq. (i) and (ii)


Since, both the equations have same slope i.e. m


So, they are parallel lines.


We know that, distance between two parallel lines


Ax + By + C1 = 0 and Ax + By + C2 = 0 is





Hence, the correct option is (b)

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