I. (16 Points) Heartland is a closed private economy. The consumption expenditure (C) function for this economy is C = $860 + 0.75Y and investment expenditure (1) is fixed at $740. 1. Present Heartland's aggregate expenditure (AE) function on a well-labeled diagram. Be sure to clearly indicate the intercept and the slope of this AE function on your diagram. 2. What is the equilibrium level of aggregate income (Y) in Heartland? $ Give a specific numerical answer and show clearly how you found it. Demonstrate this equilibrium income (Y) on your diagram drawn in part 1 above.2 3. What is the break-even level of aggregate income (Y) in Heartland? $ _. Give a specific numerical answer and show clearly how you have found it. Demonstrate this break-even aggregate income in terms of the consumption expenditure (C) schedule on a well-labeled diagram. 200 60 890 4. State the aggregate saving (S) function for the economy of Heartland and present it on a well-labeled diagram. Be sure to indicate the intercept as well as the slope of this saving (S) function. Also, show the break-even point and the break-even level of aggregate income (Y) in terms of the saving (S) schedule on your diagram.hiseconom