Yes, the root of 9 is a rational number.
According to the provided reference, since the square root of 9 results in a whole number (3), 9 is considered a perfect square. Because we can express √9 = ±3 in the form P/Q, such as 3/1, it qualifies as a rational number.
In other words:
- √9 = 3
- 3 can be written as 3/1, which is a ratio of two integers.
- Therefore, √9 is a rational number.
| Term | Definition | Example |
|---|---|---|
| Rational Number | A number that can be expressed as a fraction p/q, where p and q are integers. | 3/1, -5/2 |
| Perfect Square | A number that is the square of an integer. | 9 (3x3) |
