The figure above shows the graphs of fx and gx if fb gb whi

The figure above shows the graphs of f(x) and g(x). if f(b) = g(b), which of the following could be the value of b? Please show steps and workings.

The figure above shows the graph ofy = t(x) Iff-1) k, what is 2/(k):

F(b)= g(b)

Here we have to find those value of b at which y value of both graph are same.

It means we have to check the intersection of the two graphs. And the two graph intersects at b=-1 and b=3

Therefore at b=-1 and 3,f(b)=g(b)

In the above figure f(-1)=3.Therefore k=3

2f(k)= 2f(3)= 2*1=2