Lesson: Using Arithmetic Sequence Formulas Mathematics • 9th Grade
In this lesson, we will learn how to write explicit and recursive formulas for arithmetic sequences to find the value of the 𝑛th term in an arithmetic sequence and how to find a term’s order given its value.
Fill in the blank: If the first term of an arithmetic sequence equals 16 and , then the fifth term equals .
Find, in terms of , the general term of the arithmetic sequence .
Using the table, determine the expression that represents the value of each term as a function of its position. Then, find the value of the eighteenth term in the sequence.
|Value of Term||19||22||25||28|