All of these points have the same y coordinate so this is a horizontal line which has a slope of 0.
It is C a pyramid! They ask for shape but no measurements
Serving to induct or bring in; introductory
Rewrite the equations;
m+4n=8
m-n=-2
Eliminating m gives;
5n=10
n=2
Replacing for n in the first equation;
m+4(2)=8
m=8
Answer;
(0, 2)