Drag the production possibilities frontier (PPF) on the graph to show the effects of a technological advance in medicine that allows workers to live longer and have extended careers. Note: Select either end of the curve on the graph to make the endpoints appear. Then drag one or both endpoints to the desired position. Points will snap into position, so if you try to move a point and it snaps back to its original position, just drag it a little farther. 600 500 PPF 400 CARS (Thousands) 300 200 100 PPF O 60 120 180 240 300 360 ALFALFA (Millions of bushels) Grade It Now Save & Continue