OpenStax, Algebra and Trigonometry 2e §13.2 Arithmetic Sequences · Exercise 24 · Probability · Counting & chance

Arithmetic Sequences · Exercise 24

Find the first term given two terms from an arithmetic sequence.

Find the first term or $a_{1}$ of an arithmetic sequence if $a_{6} = 12$ and $a_{14} = 28.$

~8 minWritten answer · check your work with Lemma

OpenStax, Algebra and Trigonometry 2e · §13.2 Arithmetic Sequences · Exercise 24

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.