In this math video we will find the first four terms of an arithmetic sequence using function notation. We will be given the equation in function notation representing an arithmetic sequence and asked to evaluate the function for values of n=1 through n=4. This video will explain and model how to find each of the first four terms and correctly identify the correct multiple choice answer. We will understand that the value of n represents the input to the function, and we will find the output which is each term of the sequence. Each step of the process is modeled and explained to build understanding of function notation.

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HS.AI.F-IF.A.3 - Recognize that sequences are functions, sometimes defined recursively, whose domain is a subset of the integers. For example, the Fibonacci sequence is defined recursively by f(0)=f(1)=1, f(n+1)=f(n)+F9n-1)=1.

Given a function that represents an arithmetic sequence. Identify the first four numbers in the sequence

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