Question

The graph shows where four friends' houses are located. How many units is it between Brian's house and Sue's house?

A. −11 units
B.−9 units
C. 9 units
D. 11 units

Answer 1

-11 i think because it's going down

Answer 2

Option D. 11 units.

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 =
`√((x-x')^2+(y-y')^2)`

=
`√((-7+7)^2+(9+2)^2)`

=
`√((11)^2)`

= 11 units

Option D is the answer.