Paul made flyers to promote the grand opening of his bookstore. He gave 20 flyers to his friends, and then handed out 9 flyers every hour. He decides to graph the number of flyers, y, given out over x hours. Which equation best describes Paul's graph?

For this case, the first thing we must do is define variables.

We have then:

x: number of hours.

y: number of flyers

We now write the equation that represents this problem.

We have then:

y = 9x + 20

The slope of the graph m = 9 represents the number of flyers distributed every hour.

The intersection with the axis and b = 20 represents the number of flyers that Paul distributed to his friends.

Answer:

An equation that best describes Paul's graph is:

y = 9x + 20