1) The temperature when the weather changes from rainy to snowy will decrease over time, then, the figure II represents this situtation.
2)The number of fish caught per hour on a bad fishing day will have an almost constant function (since it was a bad day for fishing) thus, the figure V models this situation.
3)The total amount of rain that falls on a rainy day increases over time. Therefore, the figure IV can be used to represent this situation.