Q6 of 85 Page 227

Find the distance between parallel lines

15x + 8y – 34 = 0 and 15x + 8y + 31 = 0

Given parallel lines are 15x + 8y – 34 = 0 and 15x + 8y + 31 = 0.


Distance (d) between parallel lines Ax + By + C1 = 0 and Ax + By + C2 = 0 is given by


Here A = 15, B = 8, C1 = -34, C2 = 31


Distance between parallel lines is



∴ d = 65/17


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