If a system has at least one solution, it is consistent. This means that we already know that graph A is consistent since it has 1 solution. Again, if a consistent system has exactly one solution, it is independent. Thus, since graph A has 1 solution and it is consistent. the correct answers are
The system of equations is consistent independent
The system has a unique solution
Looking at the point of intersection of the lines,
x = - 1
y = 0
Solution is (1, 0)
