A graph measures y on the vertical axis and x on the horizontal. The curve on the graph is a horizontal line. From this fact we know that
A) the ratio of x to y is constant.
B) the value of y does not depend on the value of x.
C) the value of x never changes.
D) the slope of the line is not defined because y never changes.

Question

Quizplus · Accepted Answer

A horizontal line means that the value of y does not depend on the value of x, so there is no change in y as x increases or decreases. Option A is incorrect because there is no ratio between x and y. Option C is incorrect because we have no information about whether the value of x changes or not. Option D is incorrect because the slope of a horizontal line is 0, it is defined.

A Graph Measures Y on the Vertical Axis and X