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

The Phillips Curve shows the relationship between inflation and unemployment, suggesting that when inflation is high, unemployment tends to be low, and vice versa. This idea comes from observing that when the economy is strong and people are spending money, businesses hire more workers, reducing unemployment. However, as more people get jobs and wages rise, prices can also go up, leading to inflation. For example, if a city experiences a boom where many new jobs are created, the unemployment rate might drop to low levels, but prices for goods and services could rise as companies try to keep up with increased demand. Overall, the Phillips Curve helps us understand that there can be a trade-off between having low unemployment and controlling inflation.