Homework Questions. Geometric Sequences In a geometric sequence, the ratio between consecutive terms is constant. This ratio is called the common ratio.

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Presentation transcript:

Homework Questions

Geometric Sequences

In a geometric sequence, the ratio between consecutive terms is constant. This ratio is called the common ratio. To find r:

Geometric, Arithmetic, Neither? (find the next 2 terms if so) 1. 5, 15, 45, 135… 2. 15, 30, 45, 60… 3. 6, -24, 96, -384… 4. 8, 20, 32, 44…

Geometric Sequences Formulas Recursive Formula  a n = a n-1 r Explicit Formula  a n = a 1 r n-1

Find the 19 th term… 1. 11, 33, 99, 297… 2. 20, 17, 14, 11, 8…

FYI - Graphs Arithmetic Graphs are linear Geometric Graphs are exponential

Geometric Mean Geometric Mean = 3. 20, _____, , ____, 18, , ____, 5103

Homework Worksheet!