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Maths Made Easy for Class 9 on Extramarks (1)

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Are you looking for detailed explanations or solutions to the chapter in NCERT, Linear Equation in Two Variables for Class 9 Maths? Consider your search officially over because you can now get access to all the study materials that you can possibly need to ace your Maths exam, only on the Extramarks app or website. To know more, download the Extramarks learning app right away. – PowerPoint PPT presentation

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Title: Maths Made Easy for Class 9 on Extramarks (1)


1
LINEAR EQUATIONS IN TWO VARIABLES CBSE Class 9
2
LINEAR EQUATIONS IN TWO VARIABLES
  • An equation of the form ax by c 0, where a,
    b and c are real numbers, such that a and b
    are not both zero, is called a linear equation in
    two variables.
  • A linear equation in two variables has infinitely
    many solutions. The solution of a linear equation
    is not affected when a) the same number is added
    to (or subtracted from) both the sides of the
    equation. b) both the sides of the equation are
    multiplied or divided by the same non-zero
    number.
  • A linear equation in two variables is represented
    geometrically by a straight line whose points
    make up the collection of solutions of the
    equation. This is called the graph of t the
    linear equation. The polynomial equation ax by
    c 0 is called a linear equation because its
    geometrical representation is a straight line. 
  • To obtain the graph of a linear equation in two
    variables, it is enough to plot two points
    corresponding to two solutions and join them by a
    line. However, it is advisable to plot more than
    two such points so that you can immediately check
    the correctness of the graph. 

3
Extramarks Approach
  • Are you looking for detailed explanations or
    solutions to the chapter in NCERT, Linear
    Equation in Two Variables for Class 9 Maths?
    Consider your search officially over because you
    can now get access to all the study materials
    that you can possibly need to ace your Maths
    exam, only on the Extramarks app or website. To
    know more, download the Extramarks learning app
    right away.
  • For more information visit and register at
    Extramarks website.
  • https//www.extramarks.com/ncert-solutions/cbse-c
    lass-9/mathematics-linear-equations-in-two-variabl
    es

4
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