LINEAR EQUATION IN TWO VARIABLES CONCEPT

 LINEAR EQUATION   IN TWO VARIABLES CONCEPT  OF CLASS -10

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                TOPIC 

1. General form of a linear equations 

2. Types of pairs of linear equations 

3. Methods of solving of linear equations 

4. Solving non- linear pair of equations 

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1. General form of a linear equations:

1.GENERAL FORM :  ax + by +c = 0 

where,

 a, b = coefficients, 

x , y = variables

c = constant    

Ex.                                                 2x + 7y + 5=0

                                                       8x + 3y +3 = 0

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2. Types of pairs of linear equations :

(i)  Parallel Lines

(ii) Intersecting Lines

(iii) Coinciding Lines

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3. Methods of solving of linear equations :

(i) Elimination Method

(ii) Substitution Method

(iii) Cross Multiplication  Method

(iv) Graphical Method

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                                                   (Out of syllabus)

Cross multiplication Method:

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Graphical Method:

ANSWER :    X= 1,  Y= 3

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4. Solving non- linear pair of equations:

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