Find the distance between the pair of points (-7,2) and (-1,6)

use the formula:
D = √(x2-x1)² + (y2-y1)²
just your points into it

so:
D = √(-1- -7)² + (6-2)²
D = √(6)² + (4)²
D = √(36 + 16)
D = √(52)
D = 7.211

(36+16)^1/2
= 7.21
=) Good luck with your math

4^2+6^2=52
sqrt 52=7.211 is the distance