Answer
No
Work Step by Step
slope of Line DE: (0- -2)/(-1 - 3) = 2 / -4 = -1/2
slope of Line EF: (1- -1)/(2-0) = 2/2 = 1
slope of Line DF: (2- -2)/(1-3) = 4/-2 = -2
None of the slopes are the same, so these points aren't on the same line.