The value is -13. hope it will help you
Albert Einstein was born in Germany in 1879.He died by refusing surgery.
F(x) has only one x-intercept when x=0
g(x)=-x^2-6
g(x)=-(x^2+6) so g(x) will have no x-intercepts as its maximum value will be -6.
g(x) is f(x) reflected about the x axis and shifted downwards by 6 units.
A is the answer. Hope this helps!