1. Use the graph below to answer questions:

$4.50 4.00 3.50 3.00 2.50 Price per dozen bagels 2.00 1.50 1.00 D 0.50 0.00 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Quantity (thousands of dozens per month)Item Billions of dollars Consumption expenditure 6,258 Investment 1,623 Government expenditures on goods and services 1,630 Exports of goods and services 998 Imports of goods and services 1,252