Answer:
Option D. 11 units.
Step-by-step explanation:
Coordinates of Brian's house are (-7, 9)
and coordinates of Sue's house are (-7,-2)
Now we have to find the distance between Brian's and Sue's house.
Since distance between two points = [tex]\sqrt{(x-x')^2+(y-y')^2}[/tex]
= [tex]\sqrt{(-7+7)^2+(9+2)^2}[/tex]
= [tex]\sqrt{(11)^2}[/tex]
= 11 units
Option D is the answer.
