NCERT Solutions for Class 8 Maths Chapter 22 - Introduction To Coordinate Geometry

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Question 1:

Question 2:

(i) Abscissa of (0,5) = 0
(ii) Abscissa of (3,7) =3
(iii) Abscissa of (−2,4) = −2
(iv) Abscissa of (6,−3) = 6

Question 3:

(i) Ordinate of (4,0) = 0
(ii) Ordinate of (5,2) =2
(iii) Ordinate of (1,−4) =− 4
(iv) Ordinate of (−10,−7) = −7

Question 4:

Question 5:

(i) After joining points A, B, C, D, we can see that the given points forms a straight line

(ii) After joining points P, Q ,R, S, we can see that the given points forms a straight line

(iii) After joining points L, M, N, O,  we can see that the given points forms a straight line

Question 6:

(i) After joining the given points, we see that they form a straight line.


(ii) After joining the given points, we see that they form a square.


(iii) After joining the given points, we see that they form a traingle.


(iv) After joining the  given points, we see that they form a rectangle.


(v) After joining the given points, we see that they form a paralellogram.

Question 7:

Co-ordinates of D = (4,4)

Question 8:

Co-ordinates of D =(3,0)
Distance AC = 4 unit
distance BD = 4 unit

Hence, we can see that diagonals of the given rhombus are of equal length i.e, 4 units.

Question 9:

From the graph, we can see that point of intersection of line segment PQ and RS is O(2.2,2.3)

Question 10:

From the graph, we can see that after extending line AB, it cuts x-axis at P(6,0) and y-axis at Q(0,6).

Question 11:

(a) Location of (2,1) is shown by E.
(b) Location of (0,5) is shown by B.
(C) Location of (2,0) is shown by G.

Co-ordinates of point A is (4,5) and F is (5.5,0)

Question 12:

From the graph
 Co-ordinate of A =(4,7)
 Co-ordinate of B =(7,4)
 Co-ordinate of C =(4,1)
 Co-ordinate of D =(1,4)
 Co-ordinate of E =(3,5)
 Co-ordinate of F =(5,5)
 Co-ordinate of G =(5,3)
 Co-ordinate of H =(3,3)
 Co-ordinate of I =(4,5)
 Co-ordinate of J =(5,4)
 Co-ordinate of K =(4,3)
 Co-ordinate of L =(3,4)

Question 13:

From the graph
 Co-ordinate of A =(1,1)
 Co-ordinate of B =(3,0)
 Co-ordinate of C =(4,2)
 Co-ordinate of D =(2,3)
 Co-ordinate of E =(5,1)
 Co-ordinate of F =(6,3)
 Co-ordinate of G =(5,5)
 Co-ordinate of H =(4,3)
 Co-ordinate of I =(1,2)
 Co-ordinate of J =(2,4)
 Co-ordinate of K =(0,5)
 Co-ordinate of L =(2,5)
 Co-ordinate of M =(1,5)
 Co-ordinate of N=(2,6)
 Co-ordinate of O =(3,6)
 Co-ordinate of P =(4,5)
 Co-ordinate of Q =(4,4)

Question 1:

(i) Y- axis
(ii) X-axis
(iii) 0
(iv) origin
(v) 2
(vi) x
(vii) (0, 0)

Question 2:

(a) I

Question 3:

(C) III

Question 4:

(d) IV

Question 5:

(b) II

Question 6:

(c) y-axis

Question 7:

(d) a line parallel to the x-axis