High School

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The pattern of numbers below is an arithmetic sequence:

[tex]\[ 14, 24, 34, 44, 54, \ldots \][/tex]

Which statement describes the recursive function used to generate the sequence?

A. The common difference is 1, so the function is [tex] f(n+1)=f(n)+1 [/tex] where [tex] f(1)=14 [/tex].

B. The common difference is 4, so the function is [tex] f(n+1)=f(n)+4 [/tex] where [tex] f(1)=10 [/tex].

C. The common difference is 10, so the function is [tex] f(n+1)=f(n)+10 [/tex] where [tex] f(1)=14 [/tex].

D. The common difference is 14, so the function is [tex] f(n+1)=f(n)+14 [/tex] where [tex] f(1)=10 [/tex].

Answer :

To solve the problem of identifying the recursive function for the given arithmetic sequence, we need to follow these steps:

1. Identify the Sequence:
The sequence given is [tex]\( 14, 24, 34, 44, 54, \ldots \)[/tex].

2. Determine the Common Difference:
An arithmetic sequence has a constant difference between consecutive terms. To find this difference, subtract the first term from the second term:
[tex]\[
24 - 14 = 10
\][/tex]
Therefore, the common difference is [tex]\( 10 \)[/tex].

3. Identify the First Term:
The first term of the sequence is clearly [tex]\( 14 \)[/tex].

4. Write the Recursive Function:
Using the identified common difference and the first term, the recursive formula for the sequence can be expressed as:
[tex]\[
f(n+1) = f(n) + 10 \quad \text{where} \quad f(1) = 14
\][/tex]

Given these calculations, the correct statement describing the recursive function used to generate the sequence is:
"The common difference is 10, so the function is [tex]\( f(n+1) = f(n) + 10 \)[/tex] where [tex]\( f(1) = 14 \)[/tex]."

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