Graphing a vertical inequality using a table of values

The video tutorial explains how to graph the inequality X is greater than or equal to -5 on a Cartesian coordinate plane. It covers the use of a boundary line, which is solid due to the 'or equal to' condition, and the selection of test points to determine which side of the line represents the solution set. The tutorial emphasizes the importance of shading the correct region to represent all possible solutions.

Why is it important to choose a test point when graphing inequalities?

What conclusion can be drawn about the shading of the graph based on the test point chosen?