Linear Equations in Two Variables cbse
A linear equation looks like ax+by+c=0 where x,y are two variables and a, b, c are real numbers (a ≠ 0 and b ≠ 0) Example: 4x + 3y -6 = 0 0.3x + 0.4y + 2.8 =0 √ 2x + √ 3y = 0 Pair of Linear Equations in Two Variables: When two linear equations are satisfied by the same pair of values of x and y. Such as, a ₁ x +b ₁ y + c ₁ = 0 a₂x + b₂y + c₂ = 0 where a₁,b₁,c₁,a₂,b₂,c₂ are real numbers and a₁² + b₁² ≠ 0 a₂² + b₂² ≠ 0 This pair of linear equations can be solved in two ways: 1. Graphical method 2. Algebric method Linear Equations in Two Variables cbse...