Find the distance between P (x 1 , y 1 ) and Q (x 2 , y 2 ) when: (i) PQ is parallel to the y-axis, (ii) PQ is parallel to the x-axis.

Question

Philoid · Accepted Answer

Here the given points are P( x₁, y₁) and Q(x₂, y₂)

(i) When PQ is ∥ to y axis then x₁ = x₂

The distance between P and Q is

(ii) when PQ is parallel to the x-axis then y₁ = y₂

The distance between P and Q is =

=