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# From the choices given below, choose the equation whose graph is given in Fig. 4.6. (i) y = x (ii) x + y = 0 (iii) y = 2x (iv) 2 + 3y = 7x

5. From the choices given below, choose the equation whose graph is given in Fig. 4.6.

(i)    $y = x$

(ii)    $x + y = 0$

(iii)    $y = 2x$

(iv)    $2 + 3 y = 7x$

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For the given figure :

Points on line are (-1,1) ,  (0,0 ) and (1,-1)

$x + y = 0$  satisfies all the above points.

Thus, $x + y = 0$ is the correct equation of the line.

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