I'm not sure what a compound inequality is

Question

Write a compound inequality that represents the following phrase. Graph the solutions. all real numbers that are between −2 and 7

Answer 1

Hi Trinity. A compound inequality uses both the < and the > symbol. Using the example you give, we can write: -2 ≤ x ≤ 7. We could also write this using single inequalities and a conjunction: x ≥ -2 and x ≤ 7.