From the choices given below, choose the equation whose graphs are given in Figure 4.6 and Figure 4.7

For Fig 4.6 For Fig 4.7

(i) y = x (i) y = x + 2

(ii) x + y = 0 (ii) y = x - 2

(iii) y = 2x (iii) y = -x + 2

(iv) 2 + 3y = 7x (iv) x + 2y = 6

In figure 4.6,

Points plotted are (0, 0), (-1, 1) and (1, -1)

Hence,

Equation (11) x + y = 0 is correct because it satisfies all the given points.

In figure 4.7, points are (-1, 3), (0, 2) and (2, 0)

Hence,

Equation (iii) y = - x + 2 is correct because it satisfies all the given points