Algebra-1

Question Analysis
This question assesses the student's understanding of the classification of negative integers. The number -7 is a rational number because it can be expressed as a fraction, but it is not a natural number because natural numbers are positive.

Key Concept Explanation
Natural numbers are the counting numbers starting from 1 (1, 2, 3, ...). Negative integers are not natural numbers but are rational numbers.

Step-by-step Solution
1. Check if it’s a natural number: Natural numbers are {1, 2, 3, ...}. -7 is negative → Not natural.
2. Check if it’s a rational number: Rationals can be expressed as where