Question

From the choices given below, choose the equation whose graph is given in Fig. below.
(i) y = x    (ii) x + y = 0    (iii) y = 2x   (iv) 2 + 3y = 7x

[Hint: Clearly, (-1, 1) and (1, -1) satisfy the equation x + y = 0]

Answer 1

Clearly (-1 , 1 ) and ( 1, -1) satisfy the equation  x + y = 0 
∴ The equation whose graph is given by   x + y = 0