Q11 of 46 Page 29

Find the coordinates of the point

(i) which lies on x and y axes both.


(ii) whose ordinate is – 4 and which lies on y-axis.


(iii) whose abscissa is 5 and which lies on x-axis.

(i) The point which lies both on x and y axes is the origin (0,0).

(ii) The point is (0,-4).


(iii) The point is (5,0).


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9

Plot the points (x, y) given by the following table.

Use scale 1 cm = 0.25 units


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A point lies on the x-axis at a distance of 7 units from the y-axis. What are its coordinates? What will be the coordinates if it lies on y-axis at a distance of –7 units from x-axis?

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Taking 0.5 cm as 1 unit, plot the following points on the graph paper:

A(1, 3), B(– 3, – 1), C(1, – 4), D(– 2, 3), E(0, – 8), F(1, 0)

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Points A (5, 3), B (–2, 3) and D (5, –4) are three vertices of a square ABCD. Plot these points on a graph paper and hence find the coordinates of the vertex C.