Linear relationships can be expressed either in a graphical format where the variable ... two individual points (x 1, y 1) and (x 2, y 2) as: There are three sets of necessary criteria an equation ...

For example, two variables may be positively correlated to a certain point, then their relationship becomes negatively correlated. This non-linear relationship may be more difficult to identify ...

NCERT Solutions for Class 10 Maths Chapter 3, Pair of Linear Equations in Two Variables: Practicing NCERT ... are also important from the exam point of view as many times the questions have ...

The graph of a pair of linear equations in two variables is represented by two lines. (i) If the lines intersect at a point, then that point gives the unique solution of the two equations.

Pair of Linear ... Step 2: Substitute this value of y in the other equation, and reduce it to an equation in one variable, i.e., in terms of x, which can be solved. Sometimes, as in Examples ...