arithmetic sequences

• Arithmetic sequence

  A sequence that has a common difference, it goes up by the same amount each time
• Arithmetic sequence

  • 5, 8, 11, 14, 17
• Common difference (d)

  The amount the sequence goes up by each time
• First term (a)

  The first term in the sequence
• Solving for a and d

  Use the nth term formula with two given terms

  2. Set up simultaneous equations

  3. Solve for a and d