I have two points $A = [1,1]$ and $B = [3,-1]$ which forms a line segment.
The question is, which of the following statements represent a line segment given by the points.
a.) $\{[1+t,1−t] \mid t\in⟨0,2⟩\}$
b.) $\{[x,y] \mid x\in\mathbb R \text{ and } y=2−x\}$
c.) $\{[s,2−s] \mid s∈⟨1,3⟩\}$
d.) $\{[s,t] \mid s\in⟨1,3⟩ \text{ and } t=2−s\}$
Any advice would be helpful thank you!