Answer:
Yes.
Step-by-step explanation:
If the slope of the line joining A and B equals the slope of the line joining B and C then they do lie on a straight line.
The slope of AB = rise / run
= (2 -3) / (4 - 1) = -1/3.
The slope of BC
= (4-2)/(-2-4)
= 2 / =6
= -1/3.
