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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