The graph shows the location of jacob's, kent's, and hakim's houses. each unit on the graph represents 1 kilometer. a coordinate plane is shown. hakims house is located at negative 3, 1, jacobs house is located at 1, 5, and kents house is located at 1, 1. line segments connect the points to form a right triangle.

The distance between any two points is:

d^2=(x2-x1)^2+(y2-y1)^2  so in this case we have:

d^2=(5-1)^2+(1-3)^2,  d^2=(1-5)^2+(1-1)^2, d^2=(1-3)^2+(1-1)^2

d^2=(16+4), d^2=16, d^2=4

So the total distance or perimeter, p, is:

p=√20+√16+√4

p=√20+4+2

p=6+√20 km (exact)

p≈10.47 km (to nearest hundredth of a kilometer)

Okay its 3.5 times 2

(Its pretty simple but also tricky i divided it by 2)