Question

Let f(x)=x-2 and g(x)=x2-7x-9 fins f(g(-1))

Answer 1

The answer is -3 because you’re plugging g(x) into f(x). For every x there is in f(x), plug in g(x)’s equation. After you get another equation (simplified), which is x^2 -7x -11, plug -1 for every x and condense.