Answer:
Price and quantity supplied
Explanation:
The supply curve is a graphic representation of the relationship between the cost of a good and the quantity supplied of this good for a particular time period. Therefore, two factors that are displayed in the supply curve are the price and quantity supplied. The supply curve changes when these factors change too. Normally, as the price of a commodity increases, the quantity supplied increases too (all else being equal). However, changes in production can cause the curve to move left and right. Similarly, changes in price can cause the graph to shift as well.
- A primary source is a historical record created by an individual who existed in the ancient eras.
- The historical investigation that had the broadest spatial frame was the discovery of trade routes between Asian and European nations.
<h3>What is an investigation?</h3>
An investigation is a process of critically examining and identifying something related to any subject matter.
- The sources formed by the ancient historians or individuals in their respective eras are defined as primary sources. They can be manuscripts, artistic creations, books, novels, etc.
- The identification of trade routes through the silk road among the nations of Europe and Asia was one of the investigations of history having the largest frames.
Therefore, the record created by past individuals is the primary source, and the trade routes between Europe and Asia were the longest investigation.
Learn more about the primary sources in the related link:
brainly.com/question/24511160
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