Question

Practice set 1.1
1.
Find the distances with the help of the number line given below.
9 & P K J H O A B
B C C D E
-5 -4 -3 -2 -1 0 1 2 3 4 5 6
Fig. 1.5
(i) (BE)
(ii) (J, A)
(iii) (P, C)
(iv) dJ, H)
(v) d(K, O)
(vi) d(0, E)
(vii) (P, J)
(viii) (Q, B)
and that of B is y, find d(A, B).​

Answer 1

1. d(B,E)=5-2

=3UNITS

2. d(J,A)=1-(-2)

=1+2

=3UNITS

3. d(P,C)=3-(-4)

=3+4

=7UNITS

4. d(J,H)= -1-(-2)

= -1+2

= 1UNITS

5. d(K,O)= 0-(-3)

=0+3

=3UNITS

6. d(O,E)=5-0

=5UNITS

7. d(P,J)= -2-(-4)

= -2+4

=2UNITS

8. d(Q,B)=2-(-5)

=2+5

=7UNITS

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