Question

Find the next three terms in the patter 9, 4, -1, -6, -11....then describe the pattern

Answer 1

you can notice that each time you subtract 5
9-5=4
4-5=-1
-1-5=-6
-6-5=-11
following the same pattern, the next term would be:
-11-5= -16
this is a linearily decreasing pattern (decreases with constant linear rate)