On the number line, what will be the coordinate of the final point after moving 2.75 units to the left from 1.25?
Answer and explanation
Correct answer: -1.5
Moving left on the number line means subtracting the distance from the starting coordinate. Thus, the final coordinate is 1.25 - 2.75 = -1.5. Option C gives only the magnitude of the difference and ignores the negative direction. Exam tip: add for movement to the right and subtract for movement to the left.
Frequently asked questions
What is the correct answer to this question?
-1.5
Why is this the correct answer?
Moving left on the number line means subtracting the distance from the starting coordinate. Thus, the final coordinate is 1.25 - 2.75 = -1.5. Option C gives only the magnitude of the difference and ignores the negative direction. Exam tip: add for movement to the right and subtract for movement to the left.
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.
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