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How many units between ( -4 ) and ( 9 )

Answer and explanation

Correct answer: 13

The distance between two numbers on a number line is their absolute difference: \(|9-(-4)|=|13|=13\). Therefore, the correct distance is 13 units. The value 5 can result from an incorrect calculation such as \(|-4|+1\), which does not represent the distance here. Exam tip: When subtracting a negative number, carefully account for its sign.

Related tags

Number LineDistanceAbsolute DifferenceIntegersNumber SystemsMathematicsClass 9 Mcq

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