Selina Concise Mathematics Class 9 ICSE Solutions Co-ordinate Geometry Selina ICSE Solutions for Class 9 Maths Chapter 26 Co-ordinate Geometry Exercise 26(A) 1. For each equation given below; name the dependent and independent variables. ( i ) y = x -7 (ii) x = 9y + 4 (iii) x = (iv) y = (6x + 5) Solution 1: 2. Plot the following points on the same graph paper: (i) (8, 7)(ii) (3, 6) (iii) (0, 4)(iv) (0, -4) (v) (3, -2)(vi) (-2, 5) (vii) (-3, 0)(viii) (5, 0) (ix) (-4, -3) Solution 2: On the graph paper, let us draw the co-ordinate axes XOX’ and YOY’ intersecting at the origin O. With proper scale, mark the numbers on the two co-ordinate axes. Now for the point A(8,7) Step I Starting from origin O, move 8 units along the positive direction of X axis, to the right of the origin O Step II Now from there, move 7 units up and place a dot at the point reached. Label this point as A(8,7) Similarly plotting the other po...
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