Consider a hypothetical economy in which the marginal propensity to consume (MPC) is 0.50. That is, if disposable income increases by $1, consumption increases by 50c. Suppose further that last year disposable income in the economy was $400 billion and consumption was $350 billion. On the following graph, use the blue line (circle symbol) to plot this economy's consumption function based on these data. 700 600 500 400 CONSUMPTION (Billions of dollars) 300 200 100 O -100 O 100 200 300 400 500 700 800 DISPOSABLE INCOME (Billions of dollars) From the preceding data, you know that the level of saving in the economy last year was $ billion and the marginal propensity to save in this economy is Suppose that this year, disposable income is projected to be $600 billion. Based on your analysis, you would expect consumption to be |$ billion and saving to be $ billion