The number line is oriented to the right. This means that the numbers get bigger as we travel to the right.
Since positive numbers (they don't need to be rational) are bigger than zero, and negative numbers are less than zero, the first lie to the right, and second to the left of zero.
On a horizontal number line, the positive rational numbers are placed To the right of zero.
A number line is a picture of a graduated straight line that serves as abstraction for real numbers, denoted by {R}. Every point of a number line is assumed to correspond to a real number, and every real number to a point.
In a number line, always the numbers that are less than zero are placed below or left of zero and the numbers greater than zero are placed above or right of zero.
Thus, on a horizontal number line, the positive rational numbers are placed To the right of zero.
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