Lecture 19 (Calculus)

The inverse-derivative formula is evaluated at which point, according to the lecture's emphasized 'gotcha'?

1. A.(f⁻¹)′(x₀)
2. B.(f⁻¹)′(y₀)
3. C.f′(y₀)
4. D.(f⁻¹)′(m₁)