Irene R. answered 03/28/20
BS in Mechanical Engineering and Certified math teacher for 13 years
The slope (m) of a line can be determined by dividing the difference of the y-coordinates of the points by the difference between the x-coordinates of the points.
slope = m = (y 2 - y 1 )
(x 2 - x 1)
You can make either point (x 1 , y 1) and (x 2, y 2) as long as you are consistent.
For this problem, the slope will be:
slope = (y 2 - y 1 ) = (92 - 43 ) = 49
(x 2 - x 1) (34 - 39) -5