Answer:
2
Explanation:
Given the following:
• Third term, f(3) = 7
,• Common difference, d = -5
The common difference is the difference between a previous term and the next term in an arithmetic sequence.
Therefore:
[tex]\begin{gathered} f(4)-f(3)=d \\ f(4)-7=-5 \\ f(4)=-5+7 \\ f(4)=2 \end{gathered}[/tex]Therefore, the fourth term of the arithmetic sequence is 2.
Note:
f(n)=nth term, n can be any number
f(3)=3rd term
f(4)=4th term
