$a$ is a rational number. Choose a value for $a$ and plot it on the number line.
- Based on where you plotted $a$, plot $\text- a$ on the same number line.
- What is the value of $\text- a$ that you plotted?
- Noah said, “If $a$ is a rational number, $\text- a$ will always be a negative number.” Do you agree with Noah? Explain your reasoning.