exact radical form

Question

Mariah’s house is at the point (6, 3), Lexi’s house is at the point (6, 10). If Barbara’s house is mapped from Lexi’s house according to the rule, (x,y) → (x-10, y), what is the shortest distance from Barbara’s house to Mariah’s house expressed in exact radical form?

Answer 1

Draw and label a diagram.

What are the coordinates of Barbara's house?

What is the distance from Barbara's coordinates to Mariah's house.