The nth term rule: Position-to-term for arithmetic sequences

The nth term rule: Position-to-term for arithmetic sequences

Lesson details

Key learning points

  1. In this lesson, we will learn to find and understand the nth term rule for arithmetic sequences.

Licence

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3 Questions

Q1.
Look at the number grid shown on the right. Write down the column and row that match the tracking calculation 5 x 3 - 1
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Row 1 Column C
Row 3 Column B
Correct answer: Row 3 Column C
Row 3 Column E
Q2.
Look at the same number grid. Pick the tracking calculation that matches column E row 25.
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5 x 24 + 1
5 x 25
5 x 25 - 1
Correct answer: 5 x 25 + 1
Q3.
Look at the same number grid. Which column and row would 38 fall into?
Correct answer: Row 8 Column B
Row 8 Column C
Row 9 Column B
Row 9 Column C

5 Questions

Q1.
Which column has the position-to-term rule 4n + 1?
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A
B
Correct answer: C
D
Q2.
Which column has the position-to-term rule 4n - 1?
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Correct answer: A
B
C
D
Q3.
Work out the position-to term-rules for column a.
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5n + 11
5n + 6
Correct answer: 6n - 1
6n + 1
Q4.
Work out the position-to term-rules for column b.
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Correct answer: 6n + 2
6n + 3
8n
8n + 14
Q5.
Work out position-to-term rules for the sequence 3, 7, 11, 15, 19, ...
3n
3n + 7
Correct answer: 4n - 1
4n + 1

Lesson appears in

UnitMaths / Sequences