need help with my practice!What is the formula of g in terms of f?*explain well pls* -1/2f(x)-2f(x)1/2f(x)2f(x)

The given graph is same nature that mean x is negative then value of y is positive after the transformation the graph is also same nature that mean the coefficient of graph is positive
so only two possibility of the transformation is:
[tex]\begin{gathered} \frac{1}{2}f(x) \\ or \\ 2f(x) \end{gathered}[/tex]The transformation graph give higher value for origanal graph so the cofficient is more than one so only one opction is:
[tex]2f(x)[/tex]For the exact value of cofficient is the orignal function is x=0 then y is 2 but in transformation value of y is 4 so cooficent value is :
[tex]\frac{4}{2}=2[/tex]