A model (or theory):
A) is a general statement about the causal relationship between variables based on facts.
B) helps explain and predict the relationship between variables.
C) when expressed as a downward (negatively) sloping graph implies an inverse relationship between the variables.
D) all of these.

Question

Quizplus · Accepted Answer

A model or theory is a general statement about the causal relationship between variables based on facts that helps explain and predict the relationship between variables. It may be expressed as a graph, and if it is downwards sloping, it implies an inverse relationship between the variables. Therefore, all of the choices are correct.

A Model (Or Theory)