Which of the following describes the relationship between x and y for a line that has a slope of zero? As x increases, y decreases. As x increases, y increases. As x increases, y remains the same. As y increases, x remains the same.
If a line has a slope of 0, the answer would be as x increases, y increases. This is because the slope of a line doesn't change, so to keep it the same, whatever x does, y does too.
