Macroeconomics project 1. what is measured along the horizontal axis of the left-hand graph? 2. what does y represent on the horizontal axis of the right-hand graph? 3. what quantity is held constant as we move from one point to another on either graph? 4. if the graphs apply to an economy such as the u.s. economy, then to what effect is the slope of the ad curve primarily attributable? 5. explain a decrease in y from y1 to y2. 6. how could the money-supply curve ms on the left-hand graph shift