Determine the distance between the following pair of parallel lines:
8x + 15y – 34 = 0 and 8x + 15y + 31 = 0
Given: The parallel lines are
8x + 15y − 34 = 0 … (1)
8x + 15y + 31 = 0 … (2)
To find:
Distance between the givens parallel lines
Explanation:
Let d be the distance between the given lines.
Hence, distance between givens parallel line is 
1