Download App

Linear Equations in Two Variables — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSLinear Equations in Two Variables1 Mark
Question
Each of the points (-2, 2), (0, 0), (2, 2) satisfies the linear equation:
✓

Answer

  1. x + y = 0
    Solution:
    Since given that each of the three points is a solution of the linear equation, all three points have to satisfy the linear equation.
    We need to check for each of the four given equations.
    Substituting x = -2 and y = 2 in option (b),
    We get:
    LHS
    = x + y
    = -2 + 2
    0 = RHS
    $\therefore\ $x = -2 and y = 2
    Satisfy the given linear equation.
    Substituting x = 0 and y = 0 in option (b),
    We get:
    LHS
    = x + y
    = 0 + 0
    0 = RHS
    $\therefore\ $x = 0 and y = 0
    Satisfy the given linear equation.
    Substituting x = -2 and y = 2 in option (b),
    We get:
    LHS
    = x + y
    = 2 - 2
    0 = RHS
    $\therefore\ $x = 2 and y = -2
    Satisfy the given linear equation.
    So, clearly all the three points satisfy the equation
    x + y = 0.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q" from Linear Equations in Two Variables→Linear Equations in Two Variables — all question types→MATHS STD 9 question papers→Rajasthan Board STD 9 question papers→Rajasthan Board question paper generator→

Similar questions

The value of $\sqrt{3-2\sqrt{2}}$ is:
→
Angle formed in minor segment of a circle is:
→
The decimal representation of a rational number is:
  1. always terminating.
  2. either terminating or repeating.
  3. either terminating or non-repeating.
  4. neither terminating nor repeating.
→
The sum of $0.\overline{3}$ and $0.\overline{4}$ is:
  1. $\frac{7}{10}$
  2. $\frac{7}{9}$
  3. $\frac{7}{11}$
  4. $\frac{7}{99}$
→
Which of the following is a rational number.
→
It is known that if a + b = 4 then $\frac{1}{2}$(a + b) = 2. The Euclid’s axiom that illustrates this statement is:
→
The ratio of the volumes of a cube to that of a sphere which will exactly fit inside the cube is:
→
Observe the table given below and choose the correct alternative: The class mark for R is:
Column
P
Q
R
S
T
E
Marks scored
30-40
40-50
50-60
6-70
70-80
80-90
Number if students
4
8
12
10
7
4
→
Write the correct answer in the following: The value of $249^2 - 248^2$ is.
→
The volume of a cone is $1570\ cm^2.$ If it is $15\ cm$ high, then its base area is:
→