Rene Descartes belonged to

The famous mathematician associated with the problem of describing the position of a point in a plane was

If x is positive and y is negative, then the point (x,y) lies in

If x is negative and y is positive, then the point (x,y) lies in

If x is negative and y is negative, then the point (x,y) lies in

The points (-5,2) and (2,-5) lie in the:

Abscissa of a point is positive in:

In which quadrant does the point (2,3) lie?

In which quadrant does the point (-1,2) lie?

In which quadrant does the point (-1,-1) lie?

In which quadrant do the given point lie? (-4,-5)

Write the coordinates of A, B, C and D from the figure given below:

From given figure write the following:
(a) The coordinates of P
(b) The abscissa of the point Q
(c ) The ordinate of the point R
(d) The points whose abscissa is 0.

Plot the points (-2,0) and (3,-4) in the coordinate plane.

Plot the points A(2,3), B(2,1), C(0,1) and D(0,3).Join the points and identify the figure obtained.Find its area and perimeter.

How will you describe the position of a table lamp on your study table another person?

(Street Plan):A city has two main roads cross each other at the centre of the city. These two roads are along the North-South direction and East-West direction.All the other streets of the city run parallel to these roads and are 200 m apart.There are 5 streets in each direction.Using 1 cm = 200 m, draw a model of the city on your notebook.Represent the roads/streets by single line.

There are many cross-streets in your model.A particular cross-street is made by two streets, one running in the North-South direction and another in the East- West direction.Each cross-street is referred to in the following manner: If the 2nd street running in the North-South direction and 5th in the East-West direction meet at some crossing, then we will call this cross-street (2, 5).Using this convention, find:
(i) how many cross-streets can be referred to as (4,3)?
(ii) how many cross-streets can be referred to as (3,4)?

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 vertex C.

From the given figure, write the points whose
(a) ordinate = 0
(b) abscissa = 0
(c) abscissa = -3
(d) ordinate = 4

Plot the following points:

What is the difference between the ordinates of points P and Q?