Question

Calculate the slope of the lines that contain the following pairs of points. Tell whether the

line rises, falls, is horizontal, or is vertical.
*6. (-2, 0), (7, -5)

Answer 1

the line falls

Explanation:

Focus on the pair of points (-2, 0), (7, -5).

As we move from the first to the second, the x-coordinate increases by 9 and the y coordinate decreases by 5. Thus, the slop of this line is

rise

m = ------- = -5/9

run

As we move to the right from (-2, 0), the line falls (because the slope is negative).