Answer
TRUE. The set of integers $\{...,-2,-1,0,1,2,...\}$ can be expressed as $\left\{...,-\dfrac{2}{1},-\dfrac{1}{1},\dfrac{0}{1},\dfrac{1}{1},\dfrac{2}{1},...\right\}$ or as a ratio between two integers. Hence, every integer is a rational number.
Work Step by Step
The set of integers $\{...,-2,-1,0,1,2,...\}$ can be expressed as $\left\{...,-\dfrac{2}{1},-\dfrac{1}{1},\dfrac{0}{1},\dfrac{1}{1},\dfrac{2}{1},...\right\}$ or as a ratio between two integers. Hence, every integer is a rational number.
