Yes, \(-\frac{2}{1}\) (which can also be written as \(-2\)) and \(\frac{1}{4}\) are both rational numbers.
A rational number is defined as any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.
In this case:
- \(-2\) can be expressed as \(-\frac{2}{1}\), which fits the definition.
- \(\frac{1}{4}\) is already expressed as a fraction of two integers (1 and 4).
Thus, both \(-2\) and \(\frac{1}{4}\) are rational numbers.