Each Friday, the school prints 400 copies of the school newsletter. The equation c = 400w models the relationship between the number of weeks and the total number of copies of the newsletters printed. What is true of the graph of this scenario
C=400w can be written as y=400x. This is the equation of a line with slope 400 and y-intercept of 0. The slope of positive 400 represents the number of copies printed each week. Since the slope is positive, the number of copies increases each week.