To graph an inequality on a number line, we need to make note of two things: the direction of the inequality and whether it is non-strict.
h ≥ 9
Observing the given inequality, we see that all values of h are greater than or equal to 9. This means that the solution set lies to the right of 9 on a number line. Furthermore, the inequality symbol indicates that h=9 is a solution, which we will mark with a filled circle on the number line at 9.
