Chapter 3- Pair of Linear Equations in Two Variables
Chapter 3- Pair of Linear Equations in Two Variables System of a Pair of Linear Equations in Two Variables:- An equations of the form Ax + By + C = 0 is called a linear equation in two variables x and y where A, B, C are real numbers. Two linear equations in the same two variables are called a pair of linear equations in two variables. Standard form of linear equations in two variables. a 1 x + b 1 y + c 1 = 0, a 2 x + b 2 y + c 1 = 0 where a 1 , a 2 , b 1 , b 2 , c 1 , c 2 are real numbers such that Representation of Linear Equation In Two Variables Every linear equation in two variables graphically represents a line and each solution (x, y) of a linear equation in two variables, ax + by + c = 0, corresponds to a point on the line representing the equation, and vice versa. Ploting Linear Equation in Two Variables on the Graph There are infinitely many solutions of each linear equation. So, we choose at least any two values of one variable & get the value of other variable b