On the number line, point C has coordinate \(2.5\) and point D has coordinate \(4\). What is the distance between C and D?
Answer and explanation
Correct answer: 1.5 units
The distance between two points on a number line is the absolute difference of their coordinates. Thus, the distance is \(|4-2.5|=1.5\) units. Option C is only the greater coordinate, while option D is the sum of the coordinates. In an exam, use the absolute difference for distance so that the answer is positive.
Frequently asked questions
What is the correct answer to this question?
1.5 units
Why is this the correct answer?
The distance between two points on a number line is the absolute difference of their coordinates. Thus, the distance is \(|4-2.5|=1.5\) units. Option C is only the greater coordinate, while option D is the sum of the coordinates. In an exam, use the absolute difference for distance so that the answer is positive.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Representing real numbers on the number line.
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