Page 101 - IM_Algebra2_FL Print Sample.pdf
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Student Lesson Summary
In an arithmetic sequence, the value of each term is the value of the previous term added to a constant.
If you know the constant to add, you can use it to nd other terms. For example, each term in this sequence is 3 more than the term before it.
A shorthand for this would be to say the starting term is 2, and
. To nd this constant, you can subtract consecutive terms.
This can also help you decide whether a sequence is arithmetic. For example:
The di erences of consecutive terms are all the same: . So, these terms form an arithmetic sequence.
While the last two lessons have introduced geometric and arithmetic sequences, there are many other sequences that are neither geometric nor arithmetic.
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Teacher Guide
Algebra
