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Question

On a real number line, x1= -4 and x2= 14. What is the distance between these two points?
  1. 10
  2. −18
  3. 18
  4. 4


Solution

The correct option is C 18
The distance between two points is always positive. We, calculate  ∣x2−x1∣, which will give us the distance between two points.
∣14−(−4)∣=∣14+4∣=∣18∣=18

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