Consider a diagram in which the variable measured on the y-axis remains constant while the variable measured on the x-axis increases. The graph is of this relationship is a
A) perpendicular line.
B) line with slope equal to zero.
C) line that has positive slope.
D) line that has a negative slope.

Question

Quizplus · Accepted Answer

A graph where the y-value remains constant while the x-value increases is a horizontal line, which means it has a slope of zero. This is because the slope formula (change in y over change in x) would have a numerator of zero (no change in y), resulting in a slope of zero.

Consider a Diagram in Which the Variable Measured on the Y-Axis