What does the Phillips Curve primarily illustrate about the relationship between inflation and unemployment?

The Phillips Curve shows the relationship between inflation and unemployment, suggesting that when unemployment is low, inflation tends to be high, and when unemployment is high, inflation is usually low. This means that there is often a trade-off between the two: as more people find jobs and the economy grows, prices may rise because businesses charge more for their goods and services. For example, during a strong economy where many people are employed, you might notice that prices for things like food and gas go up. However, this relationship can change over time, and sometimes both inflation and unemployment can be high, which makes the curve not always accurate. Understanding this concept helps economists and policymakers make better decisions about managing the economy.