Final answer:
Upon evaluating the function f(x) = x² + 1 for x = -4, the correct result is f(-4) = 17, which is not listed among the provided answer choices.
Step-by-step explanation:
The student's question is about evaluating the function f(x) = x² + 1 at a specific value, x = -4. To do so, we substitute -4 into the function:
f(-4) = (-4)² + 1
f(-4) = 16 + 1
f(-4) = 17
However, none of the answer choices (15, 13, 9, 7) match the calculated value of 17. This suggests there was likely an error in the transcription of the function from the student's question. The proper evaluation of f(-4) with the provided function is 17, not among the given choices.