What is the distance from -1.2 to 0.3 on the number line?
Answer and explanation
Correct answer: 1.5
The distance between two numbers is the absolute value of their difference: \(|0.3-(-1.2)|=|1.5|=1.5\). Since -1.2 and 0.3 lie on opposite sides of zero, their distances from zero, 1.2 and 0.3, are added to get 1.5. The distractor 0.9 results from incorrectly subtracting 0.3 from 1.2. Exam tip: Use \(|a-b|\) to find the distance between any two points on the number line.
Frequently asked questions
What is the correct answer to this question?
1.5
Why is this the correct answer?
The distance between two numbers is the absolute value of their difference: \(|0.3-(-1.2)|=|1.5|=1.5\). Since -1.2 and 0.3 lie on opposite sides of zero, their distances from zero, 1.2 and 0.3, are added to get 1.5. The distractor 0.9 results from incorrectly subtracting 0.3 from 1.2. Exam tip: Use \(|a-b|\) to find the distance between any two points on the number line.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
