True or False: The solution of 1/2d-1≥-15 is d≥28.?

Question

please show number line diagram

Answer 1

The inequality is (1/2)d - 1 ≥ - 15.

(1/2)d ≥ - 15 + 1

(1/2)d ≥ - 14

d ≥ - 14 * 2

d ≥ - 28.

The solution of the inequality is { d | d ≥ - 28 }.

Graph the solution set on a number line :

Note :

A dot means that this point is included in the solution set.