Final answer:
To model the situation where the buyer earns 4 points for every movie purchased, we can create a graph with the number of movies purchased on the x-axis and the total points earned on the y-axis.
Step-by-step explanation:
To model the situation where the buyer earns 4 points for every movie purchased, we can create a graph with the number of movies purchased on the x-axis and the total points earned on the y-axis. Each point on the graph would represent a different number of movies purchased and the corresponding points earned. The graph would show a linear relationship where the points earned increase by 4 for every additional movie purchased.
Example:
If the buyer purchases 3 movies, they would earn 12 points. If they purchase 5 movies, they would earn 20 points. This can be represented by the points (3, 12) and (5, 20) on the graph.