GRADE 9 · MATHEMATICS · TOPIC 4

Linear Equations in Two Variables

A linear equation in x and y represents a line.

CONCEPT EXPLAINED

Understand the concept

A linear equation in x and y represents a line.

SOLVED EXAMPLE

Does (2,3) satisfy x + y = 5?

  1. Step 1: Substitute: 2 + 3 = 5.

Final answer: Yes

PRACTISE YOURSELF

Does (1,1) satisfy x+y=5?

Show the answer

No

Try another similar question and explain each step aloud. Refer to your school syllabus for topic level and notation.