Some important points to revise from the chapter are: • An equation of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a linear equation in ...

NCERT books are the first preference to prepare for CBSE and competitive exams. Class 9 is the foundation builder for students so they need to develop a strong conceptual foundation for higher studies ...

NCERT Book for Class 9 Maths: The latest NCERT Class 9 Mathematics Book for the 2025–26 academic session is now available for download in chapter-wise PDF format, in both English and Hindi medium.