Topic explanation

Standard explanation

Find zeros and excluded values, divide the line into intervals, and test the sign on each interval.

Key points

• inequalities with rational expressions
• understand the idea
• apply it carefully
• keep the ideas separate
• Inequalities With Rational Expressions: Find zeros and excluded values, divide the line into intervals, and test the sign on each interval.
• WHAT — INEQUALITIES WITH RATIONAL EXPRESSIONS: Find zeros and excluded values, divide the line into intervals, and test the sign on each interval.
• HOW — Use the idea: Identify what is given, select this topic's rule or evidence, apply it one step at a time, and check
• CORE UNDERSTANDING: Find zeros and excluded values, divide the line into intervals, and test the sign on each interval.

Labelled diagram