Question

Find the distance between the parallel lines 3x – 4y +7 = 0 and 3x – 4y + 5 = 0

Find the distance between parallel lines (i) 15x + 8y – 34 = 0 and 15x + 8y + 31 = 0 (ii) l (x + y) + p = 0 and l (x + y) – r = 0.