2-1 Arithmetic Sequences Definitions & Equations Writing & Solving Arithmetic Sequences Practice Problems
Definitions 2 Sequence A list of numbers in a particular order Term Each number in the sequence Arithmetic Sequence A sequence in which each term can be found by adding a constant Common Difference (d) The constant by which the arithmetic sequence changes
n th Term of an Arithmetic Sequence a n is the final term of the sequence a 1 is the first term in the sequence d is the common difference n is the number of terms Can be any positive integer 3
Finding a Particular Term Using the table provided, find how much it would cost to rent a crane for 12 months 4 MonthsCost ($) 175, , , ,000
Write an Equation for the n th Term Write an equation for the nth term of the sequence 8, 17, 26, 35… 5
Arithmetic Means The terms between any two nonsuccessive terms of an arithmetic sequence 6
Finding Arithmetic Means Find the four arithmetic means between 16 and 91. 7
Practice Problems 8
More Practice Problems 9