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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

7. Arithmetic Sequences

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Exercise 63 Page 280

To find the second, third, and fourth terms of the arithmetic sequence, substitute $2,$ $3,$ and $4$ in the given recursive formula.

Terms: $- 2, - 4, - 6$
Explicit Formula: $A (n) = (n - 1) (- 2)$

Practice makes perfect

Let's start by considering the given recursive formula for the arithmetic sequence.

A (n) = A (n - 1) - 2; A (1) = 0

To find the second, third, and fourth terms, we will substitute

2,

3,

and

4

in the above formula. To do so, we will use a table.

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Subchapter links

Lesson Check p.278

Practice and Problem-Solving Exercises p.279-281

Standardized Test Prep p.281

Mixed Review p.281