Starter quiz

  • Which of these are triangular numbers?
    • 0
    • 1  ✓
    • 5
    • 10  ✓
    • 20
  • Use a calculator to work out the value of 3^{8}. ______.
    • '6561' ✓
  • The next term in the geometric sequence 0.4, 2, 10, ... is ______.
    • '50' ✓
  • Which of these could be the first 4 terms in an arithmetic sequence?
    • 28, 22, 16, 11, ...
    • 136, 163, 190, 209, ...
    • 13, 49, 85, 121, ...  ✓
    • 17, 9, 1, -7, ...  ✓
    • -21, -8, 8, 21, ...
  • What is the n^{\text{th}} term rule for the linear sequence which starts 13, 8, 3, -2, ...?
    • 18 - 5n  ✓
    • 13 - 5n
    • 8 - 5n
    • 5n + 8
    • 5n + 13
  • Which of these could be the first 5 terms of a sequence with a common second difference? (These are called quadratic sequences).
    • 2, 3, 5, 8, 12, ...  ✓
    • 8, 12, 18, 28, 40, ...
    • 9, 10, 12, 16, 24, ...
    • 12, 17, 27, 42, 62, ...  ✓
    • 15, 21, 28, 36, 45, ...  ✓
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