Inequalities | Algebra | Maths | FuseSchool

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 these inequalities are represented on a number line, using full and hollow circles to indicate inclusive and exclusive values, respectively. It provides examples and exercises for viewers to practice identifying inequalities on number lines. The video concludes with a brief mention of future topics, including solving inequalities and graphing them.

What is the primary difference between an equality and an inequality?

• Equality involves two expressions being unequal.

• Inequality involves two expressions being identical.

• Inequality involves two expressions being equal.

• Equality involves two expressions being equal, while inequality involves one being greater or smaller.

Which symbol represents 'less than or equal to'?

• >

• <

• >=

• <=

On a number line, what does a hollow circle signify?

• The number is not included in the inequality.

• The number is included in the inequality.

• The number is greater than the inequality.

• The number is equal to the inequality.

How would you write a double inequality for a value x that is greater than or equal to -2 and less than 4?

• -2 <= x <= 4

• -2 < x <= 4

• -2 <= x < 4

• -2 < x < 4

What does a full circle on a number line indicate?

• The number is greater than the inequality.

• The number is included in the inequality.

• The number is less than the inequality.

• The number is not part of the inequality.