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5-122.
1. Read the Math Notes box in this lesson for information about an alternative notation for sequences, then use the given sequence to complete the parts below. Homework Help ✎

2.  a1 = 5 an = an − 1 + 6 Therefore:
3. Now continue the sequence:

1. a4 = a? + ? = ?

2. a5 = a? + ? = ?

3. The first 5 terms of the sequence are:

$\textit{a}_{4} \; =\; \textit{a}_{3} + 6 = ?$

$\textit{a}_{4} \;=\;23$

See part (a).

See parts (a) and (b).