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What is distance between ( -17 ) and ( 4 )

Answer and explanation

Correct answer: 21

The distance between two numbers on a number line is the absolute value of their difference. Thus, \(|4-(-17)|=|21|=21\). Therefore, 21 is correct. Choosing 20 would result from missing the sign change when subtracting a negative number. Exam tip: always take the absolute value of the difference when finding distance.

Related tags

Number LineDistanceAbsolute ValueIntegersNumber SystemsMathematicsClass 9 Mcq

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