The graphs of the linear equationsx – y = –1 and 3x + y = 9. The two lines intersect at the point (2, 3), which is the unique solution for the system of equations.
NB: A minus sign is missing on the red curve in the figure
The graphs of the linear equations x - y = -1 and 3x + y = 9. The two lines intersect at the point (2, 3), which is the unique solution for the system of equations.
Graphes des équations linéaires x - y = -1 et 3x + y = 9. Les lignes se croisent au point de coordonnées (2;3), qui représente la solution au système d'équations.
The graphs of the linear equations x - y = -1 and 3x + y = 9. The two lines intersect at the point (2, 3), which is the unique solution for the system of equations.