Starter quiz

  • The sequence -7, -3, 1, 5, 9, ... has a common difference of +4 therefore it is called __________ sequence.
    • an arithmetic  ✓
    • a counting
    • a geometric
  • The sequence 4, 12, 36, 108, ...has a common ratio of ×4 therefore it is called __________ sequence.
    • an arithmetic
    • a geometric  ✓
    • a multiplier
    • a multiplier
  • Match each arithmetic sequence to its next term.
    • 3, 5, 7, 9, 11, ...
      ⇔
      13 ✓
    • 27, 24, 21, 18, 15, ...
      ⇔
      12 ✓
    • -19, -13, -7, -1, 5, ...
      ⇔
      11 ✓
    • -10, -6, -2, 2, 6, ...
      ⇔
      10 ✓
  • The next term of this geometric sequence 5, 15, 45, 135, ... is ______.
    • '405' ✓
  • Why is 50, 45, 39, 32, 44, ... not an arithmetic sequence?
    • Arithmetic sequences can not decrease.
    • It is an arithmetic sequence. The differences go -5, -6, -7, -8, ...
    • It does not have a common difference between terms.  ✓
  • Which of these words describes the sequence -86, -74, -62, -50, ... ?
    • Additive  ✓
    • Arithmetic  ✓
    • Decreasing
    • Geometric
    • Linear  ✓
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