Z00047. Give a geometric description of the following system of equations.
(1) -5x – 5y = 1 ; 4x + y = 7; -21x – 9y = -27
(2) -5x – 5y = 1 ; 4x + y = 7; -21x – 9y = -29
(3) 12x – 12y = -4 ; 6x – 6y = -2; -18x + 18y = 6
Z00047. Give a geometric description of the following system of equations. (1) -5x – 5y = 1 ; 4x + y = 7; -21x – 9y = -27 (2) -5x – 5y = 1 ; 4x + y = 7; -21x – 9y = -29 (3) 12x – 12y = -4 ; 6x – 6y = -2; -18x + 18y = 6.