4. Linear Equations in Two Variables
easy

निम्नलिखित कथन सत्य हैं या असत्य लिखिए। अपने उत्तरों का औचित्य दीजिए

नीचे दिया गया आलेख रैखिक समीकरण $x+y=0$ को निरूपित करता है

Option A
Option B
Option C
Option D

Solution

The given equation is $x+y=0,$ i.e., $y=-x.$

Any point on the graph of $y =- x$, will have $x$ and $y$ coordinates of opposite signs.

As the points $(-1,1)$ and $(-3,3)$ have $x$ and $y$ coordinates of opposite signs, so these points satisfy the given equation and the two points determine a unique line, hence the given statement is true.

Standard 9
Mathematics

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