Answer:
increase
Step-by-step explanation:
the number got bigger
Check the forward differences of the sequence.
If
, then let
be the sequence of first-order differences of
. That is, for n ≥ 1,

so that
.
Let
be the sequence of differences of
,

and we see that this is a constant sequence,
. In other words,
is an arithmetic sequence with common difference between terms of 2. That is,

and we can solve for
in terms of
:



and so on down to

We solve for
in the same way.

Then



and so on down to


C I think so sorry if I’m wrong
17 degrees, you just add 22.1 to -5.1
Y is -2.08
Hope that helps!!!