With y measured on the vertical axis and x measured on the horizontal axis, the slope of a straight line is defined as
A) y/x.
B) x/y.
C) change in x)/ change in y).
D) change in y)/ change in x).

Question

Quizplus · Accepted Answer

The slope of a straight line is defined as the change in y over the change in x. This can be written as (y2-y1)/(x2-x1) or Δy/Δx, which is equivalent to the choice D, "change in y/change in x."

With Y Measured on the Vertical Axis and X Measured