The given functions are f(x) and g(x)
We want to evaluate f(g(3))
The first step is to find g(3). We would look at the row containing the values of x and select x = 3. We would trace it downwards to the row containging g(x). Where they meet is g(3)
therefore, g(3) = - 4
To get f(g(3)), we would locate x = - 4 on the first row. We would trace it downwards to the row containing f(x). Where they meet is f(g(3))
Thus,
f(g(3)) = - 1
