Linear and Non Linear Relationships · Functions and Graphs

Gradient and Linear Graphs

Calculating the slope of a line and sketching linear functions using intercepts.

Key Questions

  1. 1How does the gradient of a line represent a constant rate of change in a real world context?
  2. 2Why do vertical lines have an undefined gradient while horizontal lines have a gradient of zero?
  3. 3What is the minimum amount of information needed to uniquely define a straight line?

ACARA Content Descriptions

AC9M9A05
Year: Year 9
Subject: Mathematics
Unit: Linear and Non Linear Relationships
Period: Functions and Graphs

Suggested Methodologies

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