Final answer:
The plots of functions f and g are inversely proportional.
Step-by-step explanation:
The relationship between f and g is that they are inversely proportional, which means that a change in one leads to an opposite change in the other. In other words, as one function increases, the other function decreases and vice versa. This can be seen in the plot of the two functions, where as one function goes up, the other goes down.