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

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Following figure explains how to find x and y intercepts.

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

- (

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