Question

Line ℓ1 has the equation y=-7 and line ℓ2 has the equation y=-1. Find the distance between ℓ1 and ℓ2.

Answer 1

Distance between lines
`l_1` and
`l_2` = 6 units

Explanation:

Given:

Equation of line
`l_1` is
`y=-7`

Equation of line
`l_2` is
`y=-1`

Since these lines are parallel to each other and
`x`-axis as their slopes= 0

∴ We can directly find the vertical distance between the two lines.

Distance between the two lines =
`7-(-1) = 7+1 =6` units