Linear Equation in Two Variables

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Linear Equation in Two Variables Defining the Linear equation A liner equation is an algebraic expression in which each term is either a constant or the product of a constant and a first power of a variable. www.iPracticeMath.com

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Linear Equation in Two Variables Defining the Linear equation A linear equation shows the equality of two expressions. 2x+3=5x www.iPracticeMath.com

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Linear Equation in Two Variables Defining the Linear equation A linear equation can have number of variables but the degree of each variable can not be other than 1. 2x+3y=1 www.iPracticeMath.com

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Linear Equation in Two Variables Defining the Linear equation A linear equation in one variable is a simple equation showing relation between two expressions Ex. 3x = 9 It shows that three time of x is equal to 9. www.iPracticeMath.com

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Linear Equation in Two Variables Defining the Linear equation Some more examples of linear equations in one variable are: 4 = x/2 x = -1 2x +7 = 0 7x/2 = 14 www.iPracticeMath.com

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Linear Equation in Two Variables Dependant variable A linear equation in two variables gives a relationship between two variables such that the value of one of the variable depends on the value of the other variable. www.iPracticeMath.com

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Linear Equation in Two Variables Dependant variable In a linear equation in x and y, let  x is the independent variable and y depends on it. Then y is said to be dependent variable. www.iPracticeMath.com

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Linear Equation in Two Variables Dependant variable Ex. Let a car is running at a constant speed of 25 km/hr. As we know that the distance covered by car is proportional to the time www.iPracticeMath.com

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The equation is: Distance (d) = speed x time so that, D = 25 x t Here t is independent variable and distance is dependant variable. Linear Equation in Two Variables www.iPracticeMath.com

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