CPM Homework Help : GB8I Problem 6-29

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Home > GB8I > Chapter 6 Unit 7 > Lesson INT1: 6.1.3 > Problem 6-29

6-29.

For each recursively-defined sequence below, write the first few terms. Then use the terms to write an explicit equation.

$a_1=17$
$a_{n+1} = a_n – 3$
Hint (a):
For help, write out a sequence:
$a_1 = 17$ , $a_2 = 14$ , and so on.
Answer (a):
$a_n = 20 − 3n$

$a_1 = 20$
$a_{n+1} = \frac { 1 } { 2 } · a_n$
Hint (b):
$a_1 = 20$ , $a_2 = 10$ , and so on.

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