Consider the graph namedOkun's Lawthat has been constructed using the quarterly data on U.S. real GDP,potential GDP, and cyclical unemployment rate from 1949 to 2019.The graph indicates a positive relationship between cyclical unemployment and the percentage GDP gap. This is as predicted by Arthur Okun. However, notice two things. First, the relationship is not exact. The points do not lie very close to the line of best fit. Second, Okun's alpha for this period equals 1.40. However, the existence of a positive relationship is undeniable.

1. The Okun's alpha in that graph indicates that if the cyclical rate of unemployment is3%, the GDP gap will equal _________percent. Also, if the cyclical rate of unemployment is-3%, the GDP gap will equal___________percent.
2. In the second quarter of 2019, the U.S. real GDP was 19,021.86, the overall unemployment rate was 3.63%, and the natural unemployment rate was 4.57%. Using the Okun's alpha of 1.40, we can predict that in this quarter the potential GDP was __________units.