Question

is the number -2·7 rational or irrational?
rational
irrational
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Explanation:

A rational number is a number that can be expressed as a fraction $\frac{p}{q}$ where $p$ and $q$ are integers and $q
eq0$. First, calculate $- 2\cdot7=-14$. The number $- 14$ can be written as $\frac{-14}{1}$ (or $\frac{14}{-1}$), where $-14$ (or $14$) and $1$ (or $- 1$) are integers and the denominator is not zero. So, $-14$ is a rational number.

Answer:

rational