Based on the graph, if quantity falls from 500 units to 300 unit, the price increases. Option A
How to determine the quantity
Quantity is defined as a property that can exist as a magnitude, which illustrates discontinuity and continuity.
From the graph shown, we can see that;
Price and Quantity are inversely proportional. This means that as the price of the commodity increase, the quantity or demand also decreases and as the quantity increases, the price of the commodity decreases.
Then, if the quantity of commodity falls or decreases from 500 units down to 300 units, the price increases.
Thus, the price increased when the commodity fell from 500 - 300 units.
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