QuestionAugust 26, 2025

The recursive formula to describe an arithmetic sequence is shown. Represent the sequence as a linear function. a_(1)=-3 a_(n)=a_(n-1)+2 Linear Function : A. 2n-5 -3+2n 2-3n

The recursive formula to describe an arithmetic sequence is shown. Represent the sequence as a linear function. a_(1)=-3 a_(n)=a_(n-1)+2 Linear Function : A. 2n-5 -3+2n 2-3n
The recursive formula to describe an arithmetic sequence is shown. Represent the sequence as a linear function.
a_(1)=-3
a_(n)=a_(n-1)+2
Linear Function :	A.
2n-5
-3+2n
2-3n

Solution
4.3(122 votes)

Answer

2n - 5 Explanation 1. Identify the first term and common difference The first term a_1 = -3 and the common difference is 2. 2. Derive the formula for the nth term of an arithmetic sequence The nth term of an arithmetic sequence is given by a_n = a_1 + (n-1) \cdot d, where d is the common difference. 3. Substitute values into the formula Substitute a_1 = -3 and d = 2: a_n = -3 + (n-1) \cdot 2 4. Simplify the expression Simplify: a_n = -3 + 2n - 2 = 2n - 5

Explanation

1. Identify the first term and common difference<br /> The first term $a_1 = -3$ and the common difference is $2$.<br /><br />2. Derive the formula for the nth term of an arithmetic sequence<br /> The nth term of an arithmetic sequence is given by $a_n = a_1 + (n-1) \cdot d$, where $d$ is the common difference.<br /><br />3. Substitute values into the formula<br /> Substitute $a_1 = -3$ and $d = 2$: <br />$a_n = -3 + (n-1) \cdot 2$<br /><br />4. Simplify the expression<br /> Simplify: <br />$a_n = -3 + 2n - 2 = 2n - 5$
Click to rate: