
What do you mean by abscissa?
Important Questions on Coordinate Geometry


Draw the co-ordinate system on a plane and plot the following points.


(i) Origin is the only point which lies on both the axes.
(ii) the point and point lies in the same quadrant.
(iii) A point lies on -axis at a distance units from -axes then it’s coordinates are .
(iv) Abscissa of a point is positive in I quadrant and also in II quadrant.
(i) | (ii) | (iii) | (iv) | |
---|---|---|---|---|
(A) | F | T | F | T |
(B) | T | F | F | F |
(C) | F | T | T | F |
(D) | T | F | T | F |

In the given figure, is a rhombus whose diagonal and are along coordinate axis and units and units. Now, if is a point which is spaces right and spaces above . Find
(i) Sum of abscissae of and
(ii) sum of ordinates of and
(i) | (ii) | |
---|---|---|
(A) | -1 | 2 |
(B) | 1 | -2 |
(C) | 1 | 2 |
(D) | -1 | -2 |


Sum of the abscissae of point P and R is ____________.

Without plotting the points on a graph, state in which quadrant or on which axis do lie.


Plot the point given in the following table on the plane, choosing suitable units of distance on the axis.


Match the following.
Column-I | Column-II |
---|---|
(P) The area of with , and is | (i) sq.units |
(Q) The area of with , and is | (ii) sq.units |
(R) The area of with , and is | (iii) sq.units |

See the given figure, and find the coordinates of


On a graph paper plot the points , , . Join and . What is the figure formed?


Some points are shown in the figure:
With the help of it answer the following question:
Which are the points whose and co-ordinates are equal?

On a graph paper, plot the points , and . If those points are collinear then draw the line which includes them. Write the co-ordinates of the points at which the line intersects the and the .



