in the graph below point a represents Owens house point B represents David's house and point C represents the school use the graph to answer questions 19 and 20 who lives closer to the school and by how many miles

In order to determine who lives closer to the school, use the following formula for the distance between two points (x1,y1) and (x2,y2):
d = √((y2 - y1)² + (x2 - x1)²)
The coordinates of the school are C(3,18) and the coordinates of Owen's house and David's house are, respectively, A(11,3) and B(15,13).
Calculate the distance in between points A and C, and B and C by using the formula for d:
distance AC:
d = √((3 - 18)²+(11 - 3)²) = √((-15)²+(8)²)
d = √(289) = 17
distance BC:
d = √((13 - 18)²+(15 - 3)²) = √((-5)²+(12)²)
d = √(169) = 13
Then, the distance in between Owen's house and school is 17 miles. The distance in between David's house and school is 13 miles.
Hence, David's house is 4 miles closer to school than the Owen's house.
answer: B)