A change in a third variable, not on either axis of a graph, is illustrated with:
A) a horizontal or vertical line.
B) a movement along a curve.
C) a shift of a curve.
D) a point of intersection.

Question

Quizplus · Accepted Answer

A change in a third variable, not on either axis of a graph, is illustrated with a shift of a curve. This means that the entire curve moves either to the left or right, up or down, or is skewed in some way, indicating a change that cannot be represented by a simple movement along the x or y axis or a point of intersection. Choices A and B do not adequately represent this type of change.

A Change in a Third Variable, Not on Either Axis