Q4 of 46 Page 32

From the Fig. 3.8, answer the following:


(i) Write the points whose abscissa is 0.


(ii) Write the points whose ordinate is 0.


(iii) Write the points whose abscissa is – 5.

(i) The points whose abscissa is 0 lie on the y-axis.

The points are A(0, 3) and L(0, -4).


(ii) The points whose ordinate is 0 lie on the x-axis.


The points are I(-2, 0) and G(5, 0).


(iii) The points whose abscissa is -5 are D(-5, 1) and H(-5, -3).


More from this chapter

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1

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.

 2

Write the coordinates of the vertices of a rectangle whose length and breadth are 5 and 3 units respectively, one vertex at the origin, the longer side lies on the x-axis and one of the vertices lies in the third quadrant.

 3

Plot the points P (1, 0), Q (4, 0) and S (1, 3). Find the coordinates of the point R such that PQRS is a square.

 5

Plot the points A (1, –1) and B (4, 5)

(i) Draw a line segment joining these points. Write the coordinates of a point on this line segment between the points A and B.


(ii) Extend this line segment and write the coordinates of a point on this line which lies outside the line segment AB.