Answer:
2/3
Step-by-step explanation:
so the inverse takes us from the range to the domain... they tell us that f(4) goes to 5.. so if we were to take the inverse f[tex]\left \[-1} \atop[/tex](5) it takes us back to 4... and the slope at 4 or the derivative was 2/3 so that's what we get for f[tex]\left \ {{-1} \atop[/tex] '(5) :)
