Linear Equations in Two Variables — Formula Sheet
Karnataka Board · Class 9 · Mathematics
5 formulas from Linear Equations in Two Variables (Karnataka Board Class 9 Mathematics) on one page, grouped by topic.
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Formulas and Key Relations
Understanding Linear Equations in Two Variables
A linear equation in two variables can be written in the form ax + by + c = 0, where a, b, c are real numbers and a, b are not both zero
Finding Solutions - Step by Step Methods
Method 2
Use x = 0 to find y-intercept, use y = 0 to find x-intercept
Worked Examples and Problem-Solving Strategies
Example 1
Find 4 solutions for 2x + y = 6
Step 1
Let x = 0, then 2(0) + y = 6, so y = 6. Solution: (0, 6)
Step 2
Let y = 0, then 2x + 0 = 6, so x = 3. Solution: (3, 0)
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Sources & Official References
- Karnataka SSLC — kseeb.kar.nic.in
- Dept of Pre-University Education, Karnataka
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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