(Consumption) Use the following data to answer the questions below:

Consumption Real Disposable(billions) Expenditures Income (billions) Saving(billions)

$100 $150

$200 $200

$300 $250

$400 $300

a. Graph the consumption function, with consumption spending on the vertical axis and disposable income on the horizontal axis.

b. If the consumption function is a straight line, what is its slope?

c. Fill in the saving column at each level of income. If the saving function is a straight line, what is its slope?