Find an explicit formula for the arithmetic sequence 2, 9, 16 Note the first term should be d(1). D(n)=
Added by James T.
Close
Step 1
We can do this by subtracting the second term from the first term, and then subtracting the third term from the second term: d = 9 - 2 = 7 d = 16 - 9 = 7 Since we get the same value for d, we can be confident that this is the correct common difference for the Show more…
Show all steps
Your feedback will help us improve your experience
Randy Clemons and 95 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Find the indicated term of the arithmetic sequence with first term, $a_{1},$ and common difference, $d .$ Find $a_{16}$ when $a_{1}=9, d=2$
Sequences, Induction, and Probability
Arithmetic Sequences
Use the formula for the general term (the nth term ) of an arithmetic sequence to find the indicated term of each sequence with the given first term, $a_{1},$ and common difference, $d$. Find $a_{16}$ when $a_{1}=9, d=2$
Yujie W.
Use the formula for the general term (the nill term of an arithmetic sequence to find the indicated term of each sequence with the given first term, $a_{1},$ and common difference, $d$ Find $a_{16}$ when $a_{1}=9, d=2$
Sequences, Series, and the Binomial Theorems
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
Watch the video solution with this free unlock.
EMAIL
PASSWORD