Which number is reached by moving 7 units to the right from −2 on the number line?
Answer and explanation
Correct answer: 5
Moving to the right on a number line means adding a positive number. Thus, −2 + 7 = 5, so the final point is 5. The option −9 incorrectly keeps a negative sign after adding the magnitudes, while 7 ignores the starting point. Exam tip: moving right increases the number, whereas moving left decreases it.
Frequently asked questions
What is the correct answer to this question?
5
Why is this the correct answer?
Moving to the right on a number line means adding a positive number. Thus, −2 + 7 = 5, so the final point is 5. The option −9 incorrectly keeps a negative sign after adding the magnitudes, while 7 ignores the starting point. Exam tip: moving right increases the number, whereas moving left decreases it.
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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