Question 573199
Preferably use a computer or a calculator with 3D graphing software (e.g. TI-NSpire CX). To draw it manually, plot three random points (x,y,z) that satisfy and draw the plane connecting those points.


A graph of the plane x-2y-z = 1 can be found here:
http://www.wolframalpha.com/input/?i=x+-+2y+-+z+%3D+1