Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
7. Arithmetic Sequences
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Exercise 51 Page 280

Substitute and for

Second:
Fourth:
Eleventh:

Practice makes perfect
To find certain terms in a sequence described by an explicit formula, substitute the number of the desired term into the given formula to get the term's value.
We can find the and terms of the sequence by substituting and for into the above formula.
Now, let's do the same thing for the and terms.
term

The second, fourth, and eleventh terms are and