The function f(x) in the ./temp1/function.py script appears to be selective toward color-related words, assigning higher values to words representing colors. The function values are between 0 and 1, with color words tending to have values closer to 1, indicating a stronger association with the concept of colors. Other categories of words, such as animals and modes of transportation, have lower function values, meaning weaker association with the concept the function is selective for.