Question 534038
Find the slope, if it is defined, of each line. If slope is undefined, state this.
The line passes through each of these points (6,1)(4,2)(2,3)(0,4)(-2,5)(-4,6)
---------------------
It's a straight line, so you need 2 points.  Pick 2 of them.
(6,1) & (4,2) will do.
slope m = diffy/diffx = (1-2)/6-4)
m = -1/2
-------------
All 6 of these points are colinear, on the same line, so any 2 points will work.
You can take my word for that, or confirm it.