Final answer:
To determine the output for the input (+8), it is assumed the pattern of subtracting 1 for each step continues; however, without more information or an initial starting point, a complete and exact output sequence cannot be provided.
Step-by-step explanation:
The student is asking to find the output of an input/output machine given that the input is (+8) and the provided outputs are a sequence of numbers: 17, 16, 15, 14, 13, 12, 11. To answer this, we need to identify the pattern or rule that the input/output machine is using. The sequence shows a consistent decrease by 1 for each step. If we assume that the pattern continues in this way, the machine appears to be subtracting 1 from the previous number to get the next output.
If we apply this logic and continue the pattern with input (+8), we subtract 1 from 8 to get 7 as the first output in the sequence; each subsequent output would be one less than the one before. However, without the initial starting point or more information on the rule of the machine for this particular sequence, we cannot definitively determine the entire output. More information or data points would be necessary to provide a complete and exact response.