Final answer:
A line with a negative slope shows a relationship where as one variable increases, the other one decreases. It is graphically represented by a line that moves downward from left to right. An example is the downward-sloping demand curve in economics.
Step-by-step explanation:
A line with a negative slope indicates that there is a negative relationship between the two variables it represents. Specifically, as the value of the x variable increases, the value of the y variable decreases. Conversely, if x decreases, y increases.
In a Cartesian coordinate system, a negative slope means that the line will tilt downwards from left to right. An example of this relationship can be found in economics, where the price and quantity demanded often have a negative relationship, leading to a demand curve that slopes downward.
In terms of graph types, choice A describes a line that possesses the characteristic of a negative slope, whereas choice B describes a positive slope, and choices C and D describe horizontal lines, which have a slope of zero and do not increase or decrease.
The complete question is :What line has a negative slope? is: