Final answer:
Every rational number corresponds to a unique point on a number line.
Step-by-step explanation:
In mathematics, every rational number corresponds to some unique point on a number line. This means that for every rational number, there is a specific location on the number line that represents it. The number line is an infinite line that includes all the rational numbers, as well as irrational numbers and real numbers.
For example, let's say we have the rational number 3/4. If we plot this number on a number line, we would locate the point that is 3/4 of the way between 0 and 1. This point would represent the rational number 3/4.
Similarly, if we have the rational number -2/5, we would locate the point that is -2/5 of the way between 0 and -1. This point would represent the rational number -2/5.