This table gives the first five terms of a sequence and their positions in the sequence.

a. Describe the position-to-term rule.
By looking at the sequence it can be seen that the term is always the position number × 4.

b. Write the position-to-term rule as a rule for the nth term. The position can be represented by the letter n. Therefore, the nth term can be given by the expression 4n.
c. Use your rule for the nth term to calculate the 75th term. For the 75th term, n = 75, therefore the 75th term is 4 × 75 = 300.

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Position Term 1 4 2 8 3 12 4 16 5 20