A polynomial function f has the following properties: The only zeros of f are − 1 and 4 . − 1 is a zero of f of multiplicity 3. 4 is a zero of f of multiplicity 1 . 2 is the leading coefficient of f .

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.