• Integers are the set of positive and negative numbers and zero.
  • Integers is nothing but a whole number with negative numbers.
  • Usually for better understanding integers are represented in a number line.
  • Negative numbers will be on the left side of the number line, and positive numbers will be on the right side of  the number line.
The examples of negative integers are \(-1\), \(-2\), \(-2199\).
The examples of positive integers are \(1\), \(38\), \(48\), \(122\).
The number \(0\) is neither negative nor positive.
Negative numbers are always lesser than zero and positive numbers.
Reflection of a number:
Reflection of a number will have the same absolute value as that number but with a different sign.
Reflection of a number will be \(=-(\)absolute value of the number\()\)
Reflection of \(-1\) is \(-(-1) = +1\)
Reflection of \(20\) is \(-20\)
The distance between the positive number and zero in a number line will be equal to the distance between the reflection of the same negative number and zero.
Distance between \((-x)\) and \(0\) in number line \(=\) Distance between \(x\) and \(0\) in a number line.
Let us take a number \(+1\) its distance in the number line from \(0\) is \(1\).
Reflection of \(+1\) will be \(-(1)\) and its distance in the number line from \(0\) is also \(1\).
Distance between \(-20\) and \(0\) is \(20 =\) Distance between \(20\) and \(0\).
Numbers with decimals (\(0.21\), \(2.35\)), irrational numbers \(π≈3.14\), square roots - \(\sqrt{2}\), \(\sqrt{3}\) are not integers.