Suppose we want to study the relationship between a household's income and its spending on "essentials". We've collected some data on a variety of households, some of which you see here: Income and Spending for four households Both Income and "Essential" Spending are measured in thousands of dollars. Amazingly, these data, when plotted on a graph with Income on the horizontal "X" axis, line up perfectly on a straight line. What is the slope of this line? Give your answer to at least one decimal place.