Samuel would like to rent a booth at his local farmer's market to sell his merchandise. It costs $300 to rent a booth at the farmer's market, and for each item that Samuel sells, x, he profits $25. This can be modeled by the function S(x) = 25x − 300. Based on the graph of the linear function that represents the amount of money Samuel profits, S(x), what is the coordinate of the x-intercept and its interpretation?