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, ...
O 10, 8, 6, 4, 2, ...

Answer 1

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

A: –10, –12, –14, –16, –18, ... Wrong

B: –2, 8, 18, 28, 38, ... Wrong

C: 8, 18, 28, 38, 48, ... Wrong

D: 10, 8, 6, 4, 2, ... Correct

Answer 2

10, 8, 6, 4, 2, ...

Explanation:

Only one of the answer choices starts with 10. That one is the correct choice:

10, 8, 6, 4, 2, ...

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f(1) = 10 means the first term of the sequence is 10.