Question

Which sequence is generated by the function f(n + 1) = f(n) - 2 for f(1) = 10?

-10.-12, -14, -16, -18,
-2,8, 18, 28, 38,
8, 18, 28, 38, 48,
10, 8, 6, 4, 2,
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Answer 1

10, 8, 6, 4, 2,

Explanation:

f(1) = 10 tells you the first term in the sequence is 10. Only one answer choice has a first term of 10.

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f(n+1) = f(n) -2 tells you that each successive term is 2 less than the previous term. The same answer choice also has that characteristic.