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.
Frequently asked questions
What is the correct answer to this question?
13
Why is this the correct answer?
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.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Number line.
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