The answer would be C. Because it is asking what the Y intercept means. They tell us y= the number of ounces in the cooler after practice. We do not know how much the kids drank, but they do tell us X=the number of players who take drinks from the cooler. Since the question is 24X we can assume the 24 means the amount the students drank. If we solved that, we would know how much was left after practice which is what Y is asking us. So the answer is C because it tells us what the Y intercept means (Each person drank approximately 24 OZ of water at the practice. 648-24x)
Hope this helps!