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40 votes
40 votes
Value of the pronumeral and describe the rule.
4,1,-2,p,-8,-11​

User MattTheHack
by
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1 Answer

14 votes
14 votes

Answer:

p = -5

every element in the sequence is created by subtracting 3 from the pervious element.

Explanation:

I am not sure you put every necessary information here.

but I'd the visible information is truly everything, then it's is trivial.

the difference between 4 and 1 is ... well, -3. meaning we subtract 3 from 4 to get 1.

we suspect this is the rule and keep trying.

1 -3 = -2

hey it works.

and -8 -3 = -11

hey, also correct.

and the difference between -2 and -8 is -6, and when we place another item in between (p), we cut that in half again to -3. so, it is all consistent.

therefore,

p = -2 -3 = -5

the rule is

an = an-1 - 3

User Geeth
by
2.8k points