What kinda of system of linear equations would be hard to solve by graphing?

Question

I'm currently working on Linear equations and I got this question on a tale home quiz but tje teacher never went over this is class...pls help! Thanks

Answer 1

 

The graphing method does not always work well even for systems of 2 variable equations. If the point of intersection has coordinates that are not integers, it is often difficult to determine the exact value of the coordinates, from the graph.

Answer 2

A system of two linear equations  in two dimensions (eg. x and y) can be solved by graphing in the x - y plane.

However, a system of linear equations involving three or more dimensions is difficult to solve by graphing.