Question

I don’t get it I need a little help

Answer 1

if you add the number 3 the negatives start going up
-14 +3 = -11

Answer 2

$\bf -2~~,~~\stackrel{-2\stackrel{\downarrow }{-3}}{-5}~~,~~\stackrel{-5\stackrel{\downarrow }{-3}}{-8}~~,~~\stackrel{-8\stackrel{\downarrow }{-3}}{-11}~~,~~\stackrel{-11\stackrel{\downarrow }{-3}}{-14}~~,~~... \\\\\\ \textit{common difference}\qquad -3$