Problem 13 of 7
Write an explicit arithmetic sequence rule for the terms 5, 8, 11, 14.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
express nth term using first term and difference.
Hidden until you reveal it.
Terms must have a constant difference and use first-term indexing.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Identify first term a_1 and common difference d.
2. Use a_n = a_1 + d(n - 1).
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Off-by-one formula that fails for n=1.