Respuesta :

Answer:

A. F^1(x) = x/7

Step-by-step explanation:

[tex]y = 7x \\ x = 7y \\ \frac{x}{7} = \frac{7y}{7} [/tex]

[tex]y = \frac{x}{7} [/tex]

Therefore the inverse is

[tex]f {}^{1} = \frac{x}{7} [/tex]