f(0)=g(0)
From the graph, f(x) and g(x) are two linear functions or straight lines.
They intersect at (0,−2).
So, point (0,−2) is the solution to the system of linear equations.
The solution or point of intersection must satisfy the equations.
In both the case,
f(0)=−2 and g(0)=−2
Therefore, option 1 is the correct answer.