Suppose parametric equations for the line segment between (8,−1) and (0,10) have the form
x(t)=a+bt
y(t)=c+dt
If the parametric curve starts at
(8,−1) when t=0 and ends at (0,10)at t=1, then find a, b, c, and d.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

wait this depends wether emily and zach how they are thinking.

yes they are the same.