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,

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

Step-by-step explanation:

we have

Evaluate the function

we have

step 1

Find f(2)

For n=1

substitute the value of f(1)

step 2

Find f(3)

For n=2

substitute the value of f(2)

step 3

Find f(4)

For n=3

substitute the value of f(3)

step 4

Find f(5)

For n=4

substitute the value of f(4)

therefore

The sequence is

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

the answer is: the length is 5/6 yards.

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step-by-step explanation: