May 16, 2011
Section 9.4
Sequences
Arithmetic Sequence
A sequence that is of the form
The number d is called the common
difference.
recursive formula:
explicit formula:
Find the first 4 terms and the fifty-third
term of the sequence
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May 16, 2011
Geometic Sequence
A sequence that is of the form
The number r is called the common ratio.
recursive formula:
explicit formula:
Given the geometric sequence -2, 2, -2, 2, ...
Find the common ratio.
Find the eighth term.
Find a recursive rule for the nth term.
Find an explicit rule for the nth term.
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May 16, 2011
The fifth and ninth terms of an arithmetic
sequence are -5 and -17, respectively.
Find the first term and a recursive rule for
the nth term.
The third and sixth terms of a geometic
sequence are -75 and -9375, respectively.
Find the first term, the common ratio and
an explicit rule for the nth term.
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