Category: Mathematics | Last updated: 2026-09-18

The distance between parallel lines y=2x+3 and y=2x+7 is:

A) 4

B) 4/√5

C) 2/√5

D) 8/√5

Explanation

Distance = |c₁-c₂|/√(a²+b²) = |3-7|/√(4+1) = 4/√5.

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