Two
quantities are said to be
inversely proportional if their measurements evolve in opposite
direction.
In other words, two quantities are inversely proportional if the
product of their quantities is a constant number.
Example
To travel a certain given distance [latex]d[/latex], the speed [latex]v[/latex] and the time [latex]t[/latex] are two inversely proportional quantities connected in the relationship [latex]d = vt[/latex]. The faster the vehicle goes, the less time it will take to travel the same distance. Therefore, the quantities [latex]v[/latex] and [latex]t[/latex] vary in opposite directions.
