$x = 2, y = - 1$ is a solution of the linear equation

x + 2 y = 0

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x + 2 y = 4

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2 x + y = 0

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2 x + y = 5

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Solution

The correct option is A $x + 2 y = 0$
$x + 2 y = 0$
$L . H . S = 2 + 2 (- 1) = 2 - 2 = 0$

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Similar questions

$x = 2, y = - 1$ is a solution of the linear equation
(a) $x + 2 y = 0$
(b) $x + 2 y = 4$
(c) $2 x + y = 0$
(d) $2 x + y = 5$

Q. Which of the following pairs of linear equations are consistent/inconsistent? If consistent, obtain the solution graphically:

(i)

x + y = 5, 2 x + 2 y = 10

(ii)

x - y = 8, 3 x - 3 y = 16

(iii)

2 x + y - 6 = 0, 4 x - 2 y - 4 = 0

(iv)

2 x - 2 y - 2 = 0, 4 x - 4 y - 5 = 0

Which of the following pairs of linear equations is inconsistent?
$1. x + 3 y - 5 = 0, 2 x + y = 0$
$2. 2 x + y = 1, 2 y = 2 - 4 x$
$3. 2 x - y = 2, 2 y - 4 x = 2$

Q. The equations of the tangents drawn from the point (0, 1) to the circle

x^{2} + y^{2} - 2 x + 4 y = 0

are

Q. Solve the following systems of linear inequations graphically:

(i) 2x + 3y ≤ 6, 3x + 2y ≤ 6, x ≥ 0, y ≥ 0
(ii) 2x + 3y ≤ 6, x + 4y ≤ 4, x ≥ 0, y ≥ 0
(iii) x − y ≤ 1, x + 2y ≤ 8, 2x + y ≥ 2, x ≥ 0, y ≥ 0
(iv) x + y ≥ 1, 7x + 9y ≤ 63, x ≤ 6, y ≤ 5, x ≥ 0, y ≥ 0
(v) 2x + 3y ≤ 35, y ≥ 3, x ≥ 2, x ≥ 0, y ≥ 0

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x=2,y=−1 is a solution of the linear equation

The correct option is A x+2y=0x+2y=0L.H.S=2+2(−1)=2−2=0

$x = 2, y = - 1$ is a solution of the linear equation

The correct option is A $x + 2 y = 0$
$x + 2 y = 0$
$L . H . S = 2 + 2 (- 1) = 2 - 2 = 0$