4. Linear Equations in Two Variables
easy

જે સુરેખ સમીકરણના ઉકેલો $(-2, 2), (0, 0)$ અને $(2, -2)$ હોય, તેનું સ્વરૂપ ......

A

$y -x = 0$

B

$x -2 y = 0$

C

$-2x + y = 0$

D

$x + y = 0$

Solution

The points $(-2, 2)$ and $(2, -2)$ have $x$ and $y$ coordinates of opposite signs. Also, any point on the graph of $x + y = 0$

i.e., $y = -x$ will have $x$ and $y$ coordinate of opposite signs. The Point $(0, 0)$ also satisfies $x + y = 0.$ 

Standard 9
Mathematics

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