Question

A marina is in the shape of a coordinate grid. Boat A is docked at (3.1, −1) and Boat B is docked at (−4.1, −1). The boats are ____ units apart.

a
5.1
b
7.2
c
8.1
d
8.2

Answer 1

b

Explanation:

[3,1-(-4,1),-1-(-1)]

(3,1+4,1 , 0)

x=7, 2

y=0