Inequalities

The video introduces the concept of inequalities, explaining that they are used when two expressions are not equal. It covers the basic symbols for inequalities, such as less than, greater than, and their variations with 'or equal to'. The video also demonstrates how inequalities are represented on a number line, using full and hollow circles to indicate inclusive and exclusive values, respectively. Viewers are encouraged to practice identifying inequalities and are introduced to double inequalities. The video concludes with a brief mention of future topics, including solving inequalities and graphing them.

What does a closed circle on a number line indicate?

How can double inequalities be expressed and what do they represent?