I wanted to make sure students could enter the general solution of a system of linear equations as a vector form without the actual standard vector format. So, I modified the following problem /Library/Rochester/setLinearAlgebra1Systems/ur_la_1_14.pg using https://webwork.maa.org/wiki/VectorParametricLines as a guide. The problem is that WeBWorK recognizes (21,-14,t)+t(22,-17,0) as equivalent to (21,−14,0)+t(22,−17,1)
Is there a way of having WeBWorK recognize that (21,-14,t)+t(22,-17,0) is incorrect?
Enclosed is the relevant portion of the modified code.