1. Lesson 2

1.9. Lesson 2 Summary

Mathematics 30-3 Module 3

Module 3: Algebra

 

Lesson 2 Summary

 

In this lesson you looked at equations of linear relations.

 

Direct linear relations can be described using the equation y = mx. The graph of a direct linear relation will always be straight (linear) and will pass through the origin (0, 0).

 

This is a graph of a straight line that passes through the origin.

 

Partial linear relations can be described using the equation y = mx + b. The graph of a partial linear relation will always be straight (linear). However, the graph will pass through the y-axis at a point (0, b), where b ≠ 0. In other words, the graph will cross through any point on the y-axis that is not (0, 0).

 

This is a graph of a straight line that does not pass through the origin.