Topic explanation

Standard explanation

Slope is change in y divided by change in x and is undefined for a vertical line.

Key points

• slope between two points
• understand the idea
• apply it carefully
• keep the ideas separate
• Slope Between Two Points: Slope is change in y divided by change in x and is undefined for a vertical line.
• WHAT — SLOPE BETWEEN TWO POINTS: Slope is change in y divided by change in x and is undefined for a vertical line.
• 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: Slope is change in y divided by change in x and is undefined for a vertical line.

Labelled diagram