Here we will learn about the integers and the number line.
The set of integers, I = {……, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, ……}.
Now we will learn about representation of integers on the number line. The number line representing the integers is as given below:
(i) On the number line, the positive integers are shown on the right side of zero and negative integers on the left side of zero.
(ii) The opposite integers 1 and 1 are marked at the same distances from zero; so are 2 and 2; 3 and 3 and so on.
(iii) The arrows marked, at both the ends of a number line, represent that the integers, both positive and negative; are infinite.
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