Starter quiz

  • In the context of the arithmetic sequence 13, 20, 27, 34, 41, ..., you can call +7 the __________.
    • addition
    • n^{th} term
    • sum
    • term-to-term rule  ✓
  • Match each arithmetic (linear) sequence to its term-to-term rule.
    • 1, 5, 9, 13, 17, ...
      ⇔
      +4 ✓
    • -4, -1, 2, 5, 8, ...
      ⇔
      +3 ✓
    • 2, -1, -4, -7, -10, ...
      ⇔
      -3 ✓
    • 3, -4, -11, -18, -25, ...
      ⇔
      -7 ✓
    • 3, 5, 7, 9, 11, ...
      ⇔
      +2 ✓
    • -32, -25, -18, -11, -4, ...
      ⇔
      +7 ✓
  • Select the terms that are in this arithmetic sequence: 7, 15, 23, 31, ...
    • 89
    • 87  ✓
    • 80
    • 55  ✓
    • 50
  • Which of these terms are in the sequence described by "Start on 5 and add 3 each time"?
    • 3
    • 5  ✓
    • 8  ✓
    • 15
    • 20  ✓
  • Select the expressions that have a value of 33 when n=10.
    • 4n-7  ✓
    • 33+n
    • 3n+3  ✓
    • 33n
    • 63-3n  ✓
  • Find the value of the expression 9-6n when n=4.
    • -55
    • -24
    • -15  ✓
    • 3
    • 4
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