I need help with this

4. a. Compute the missing values in the following table. What economic relationship does the completed table illustrate? b. Draw an ISLM gure with two IS curves, one for period 1, and the other for period 5, and EXPLAIN INTUITIVELY (i.e., by economic relationships) why the IS curve for period 5 differs from that for period 1. P E -100.0 100.0 2 103.0 102.0 0.5 116182