The slope of a line
A)can only be calculated for straight lines
B)varies at different points along a straight line
C)indicates whether or not there is a causal relationship between variables
D)is independent of the units of measurement used
E)indicates how much the vertical variable changes for a given change in the horizontal variable

Question

Quizplus · Accepted Answer

The slope of a line indicates how much the vertical variable changes for a given change in the horizontal variable. This is true for any type of line, not just straight lines. The slope is often used to measure the strength of the relationship between two variables, but it does not indicate whether or not there is a causal relationship between them. The units of measurement used will affect the value of the slope, so D is not correct.

The Slope of a Line