Which is this graph's name and meaning?

	1.	PPC or Production of Petroleum Curve, showing the trade-offs between using two types of oil in your gas tank with point A meaning your tank is empty.
	2.	MVPYdGDPGDPXYZ Graph. MV + PY = dGDP + GDP + XYZ, this graph shows that money is increasing while GDP is decreasing, making everyone wealthy, at Point Z.
	3.	PPC or Production Possibilities Curve, showing the trade-offs between supplying two products, with Point A on the curve one achievable tradeoff.
	4.	KTG or Keynesian theory graph showing one curve for supply, one curve for demand, and a vertical line where potential or maximum GDP exists at Point a.