Unit 3 Semester Review - Equations and Inequalities

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or equal to the other. Common symbols include <, >, ≤, and ≥.

Front

What does the symbol ≤ represent?

Back

The symbol ≤ means 'less than or equal to'. It indicates that the value on the left can be either less than or equal to the value on the right.

Front

How do you represent the phrase 'the sum of 7 and x is less than or equal to -20' as an inequality?

Back

Front

Back

Front

When graphing an inequality, what does an open circle indicate?

Back

An open circle indicates that the number is not included in the solution set, used with < or >.

Front

What does the symbol > represent?

Back

The symbol > means 'greater than'. It indicates that the value on the left is larger than the value on the right.

Front

How do you write an inequality for having at least $50 in a bank account?

Back

Front

What is the maximum amount you can write a check for if you have $137.26 and need to keep at least $50?

Back

Front

What does the symbol < represent?

Back

The symbol < means 'less than'. It indicates that the value on the left is smaller than the value on the right.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater than or less than another.