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  • (i) Represent the following numbers on the number line. 7, 7.2, -3 by 2,-12 by 5

Represent the following numbers on the number line. 7, 7.2, -\frac{3}{2},-\frac{12}{5}

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Solution.        
Firstly we draw a number line whose mid-point is O. Mark positive numbers on the right-hand side of O and negative numbers on the left-hand side of O.

(i) Number 7 is a positive number. So we mark the number 7 on the right
hand side of O, which is at a 7-unit distance from zero.

(ii) Number 7.2 is a positive number. So, we mark the number 7.2 on the right-hand side of O, which is 7.2 units distance from zero.
(iii) Number -\frac{3}{2} or – 1.5 is a negative number so, we mark the number 1.5 on the left-hand side of zero, which is at 1.5 units distance from zero.

(iv) Number -\frac{12}{5} or –2.4 is a negative number. So, we mark the number 2.4 on the left-hand side of zero, which is at 2.4 units distance from zero.

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