Final answer:
The value of k in the inverse variation function represents the constant of variation.
Step-by-step explanation:
The value of k in the inverse variation function represents the constant of variation. In an inverse variation, as one variable increases, the other variable decreases in such a way that their product remains constant. The equation for inverse variation is y = k/x, where k is the constant of variation. In this case, k = 19800, so it represents the constant of variation in the relationship between x and y.