Find a formula for the nth term of the arithmetic sequence:
2 answers:
Answer:
4n+ ?
Step-by-step explanation:
I know the first part is 4n but im doing this problem myself and cant figure out the second part.
Answer:
Step-by-step explanation:
The generic formula for the n-th term of an arithmetic sequence is ...
an = a1 +d(n -1)
where an is the n-th term and a1 is the first term.
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Here, you have a1 = -12 and d = 4. Putting these numbers into the formula gives you what you are asking for:
an = -12 +4(n -1)
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