Along a curve, when one variable increases, the other variable decreases. The curve showing this relationship has
A) a positive slope.
B) a zero slope.
C) an increasing then a decreasing slope.
D) a negative slope.

Question

Quizplus · Accepted Answer

A negative slope indicates that as one variable increases, the other variable decreases. Choice A is incorrect because a positive slope indicates that as one variable increases, the other variable also increases. Choice B is incorrect because a zero slope indicates that there is no relationship between the two variables. Choice C is incorrect because it suggests the slope changes direction, which is not necessarily the case.

Along a Curve, When One Variable Increases, the Other Variable