The issue is still with what "it" they're meaning. (The question is very poor English, which doesn't help. For instance, what is meant, mathematically, by "looking like as a solution set"?)
If, based on your experience in the course or based on other (as-yet-unposted) information from the assignment, you think they're asking "What might
a function look like, if it had the specified domain and range?", please say so. If you think they're asking "What is the set-notation form of the solution set of the equation, assuming a generic name 'f(x)' and points of the form (x, y) = (x, f(x))?", please say so. If you think they're saying something else, please say what you think that might be.
But we can't help with specificity as long as we only know that you need to say what "it" "looks" like "as a solution set". Thank you!