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Video: Representing Real Numbers on the Number Line Video Lecture | Crash Course: Class 9

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FAQs on Video: Representing Real Numbers on the Number Line Video Lecture - Crash Course: Class 9

1. How do you represent real numbers on the number line?
Ans. Real numbers can be represented on a number line by placing the value of the number at the corresponding position. For example, if the real number is 3, it will be represented by placing a point at the position labeled 3 on the number line.
2. What is the purpose of representing real numbers on the number line?
Ans. Representing real numbers on the number line helps us visualize and understand the order and magnitude of different numbers. It allows us to compare and perform operations on real numbers more easily.
3. Can negative numbers be represented on the number line?
Ans. Yes, negative numbers can be represented on the number line. They are placed to the left of zero, with the distance from zero indicating the magnitude of the negative number. For example, -3 would be represented by placing a point at the position labeled -3 on the number line.
4. How can decimal numbers be represented on the number line?
Ans. Decimal numbers can be represented on the number line by dividing the line into equal segments and placing the decimal number at the corresponding position. For example, if the decimal number is 0.5, it would be represented halfway between 0 and 1 on the number line.
5. Are irrational numbers represented on the number line?
Ans. Yes, irrational numbers can be represented on the number line. Since irrational numbers cannot be expressed as fractions or decimals, their exact position on the number line cannot be determined. However, they can be approximated and represented by placing them between two rational numbers.
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