High School

Which option below represents the formula for the arithmetic sequence that begins with 50, 46, 42, 38, 34?

A. \( f(n) = 50 - 4(n - 1) \)
B. \( f(n) = 50 - 4n \)
C. \( f(n) = 50 + 4(n - 1) \)
D. \( f(n) = 50 + 4n \)

Answer :

Final answer:

Using the formula for the arithmetic sequence (which is a + (n-1)d), the correct sequence for 50, 46, 42, 38, 34 would be 54 - 4n. None of the given options correctly represent this arithmetic sequence.

Explanation:

The given arithmetic sequence in this mathematical problem is: 50, 46, 42, 38, 34. An arithmetic sequence is a sequence of numbers such that the difference of any two successive members is a constant. Here, our constant difference is -4. Therefore, we need a function that, when we increase n, drops down by 4 each time.

The formula for an arithmetic sequence is a + (n-1)d, where 'a' is the first term and 'd' is the common difference. Here, a=50 and d=-4. Plugging these in our formula, we get, 50 - 4(n-1), which simplifies to 54 - 4n.

But there is no such equation in the given options. Seems like there might be a typographical error in the question. None of the given options correctly represent the formula for the arithmetic sequence that begins with 50, 46, 42, 38, 34.

Learn more about Arithmetic Sequence here:

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