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 ...

CBSE Class 9 Maths extra questions and answers for Chapter 4 - Linear Equations In Two Variables can are entirely based on the important concepts given in the NCERT book. Therefore these questions are ...

As with other equations and inequations, when working with algebraic equations and inequations it is key to change operation when you change side. Practice working with linear equations and ...

Now try the example questions below. Use the equation of the line of best fit to estimate Jill's score in her science test if she scored 14 in her Maths test. The general equation for a straight line ...