Marissa researched the cost to have custom t-shirts printed by several local and online vendors. she found that each store’s charge for the job could be modeled by a linear function that combined a flat charge for artwork with a per t-shirt rate. marissa plotted the functions on a coordinate grid and found that two of the functions produced lines that had the same y-intercept. how should marissa interpret this result?

The graph that represents possible functions is shown in the diagram below. Point C shows the point on y-axis where f(x) and g(x) crosses. The result should be interpreted by the level of steepness of each slope

g(x) has a steeper gradient than f(x) and this indicates steeper fee rise for producing the T-shirt. So if Marissa is to choose the better value for her money to produce T-shirt, she should choose the function f(x) providing there are no other factors to consider other than prices.