NCERT Class 9 Solutions: Linear Equation in Two Variable (Chapter 4) Exercise 4.2 – Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

Doorsteptutor material for CBSE/Class-9 is prepared by world's top subject experts: get questions, notes, tests, video lectures and more- for all subjects of CBSE/Class-9.

Following figure explains how to find x and y intercepts.

Give Figure of Finding a and Y Intercepts, Equation is X-2y = 4 …

Q-3 Check which of the following are solutions of the equation and which are not:

  1. (

Solution:

  • Given the equation
  • A point is a solution to this equation, if it lies on the graph of the equation. That is the equation is satisfied when we put in corresponding coordinates and L. H. S R. H. S

Putting and in the L. H. S of the given equation,

L. H. S R. H. S

Therefore, is not a solution of this equation.

Putting and in the L. H. S of the given equation,

L. H. S R. H. S

Therefore, is not a solution of this equation.

Putting and in the L. H. S of the given equation,

R. H. S

Therefore, a solution of this equation.

Putting and in the L. H. S of the given equation,

L. H. S R. H. S

Therefore, is not a solution of this equation.

Putting and in the L. H. S of the given equation,

L. H. S R. H. S

Therefore, is not a solution of this equation.

Q-4 Find the value of k, if is a solution of the equation

Solution:

  • Give the equation of
  • Since and is a solution to the equation, it must satisfy the equation

Thus,

  • So, the value of is

Developed by: