NCERT Solutions for Class 9 Maths Chapter 4
Important NCERT Questions
Linear equations in two variables
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 4.3
Page No:74
Questions No: 1 Part:1
Draw the graph of each of the following linear equations in two variables: x + y = 4
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(i) x + y = 4
⇒ y = 4 – x
Putting x = 0, we have, y = 4 – 0 = 4
Putting x = 1, we have, y = 4 – 1 = 3
Hence, A(0, 4) and B(1, 3) are the solutions of the equation.