Chapter B, Problem 29E

To determine

To sketch: The region in the xy-plane.

Explanation of Solution

Given:

The region is $\left\{\left(x,y\right)|x<0\right\}$.

Graph:

The given region is sketched in the graph as shown below in Figure 1.

From Figure 1, it is observed that the region contains all the values to the left of y-axis.