Refer to the image below for the graph.
Work Step by Step
The solutions of the given inequality are the numbers that are greater than or equal to $-6$. The numbers that are greater than $-6$ are to the right of $-6$. Thus, to graph the solutions on a number line, plot a solid dot at $x=-6$ (alternatively, a bracket may be used instead of a solid dot), then shade the region to its right. (refer to the attached image in the answer portion above)