Question

That u have to find the distance between the pair of points

Answer 1

The formula of a distance between two points:

`d=√((x_2-x_1)^2+(y_2-y_1)^2)`

We have the points (1, 3) and (3, 1). Substitute:

`d=√((3-1)^2+(1-3)^2)=√(2^2+(-2)^2)=√(4+4)=\sqrt8\approx2.8`

Answer: C. 2.8