Final answer:
A graph line illustrating an inverse correlation has a negative slope, slanting downward to the right, indicating that one variable decreases as the other increases.
Step-by-step explanation:
The line of a graph with an inverse correlation or variation will have a negative slope. When two variables are negatively related, one increases as the other decreases. For instance, as the altitude increases, air density tends to decrease, showing a negative correlation. This graphical representation is depicted as a line that, as it moves from left to right, will slant downward. In the context of economics, there is often a negative relationship between price and quantity demanded, meaning that as prices rise, the quantity that consumers are willing to purchase typically falls.
A line with an inverse correlation or variation will have a negative slope (downward slanting to the right). This means that as the x-values increase, the y-values decrease or vice versa. Graphically, the line on the line graph falls from left to right. For example, if we have a line representing the relationship between the price and quantity demanded, as the price increases, the quantity demanded decreases.