The second option is right, because inverse means opposite. And to get the opposite just flip it and you have your answer.
Answer:
The given function is:
[tex]y=\frac{7x-1}{2}\\\\2y=7x-1\\\\2y+1=7 x\\\\x=\frac{2y+1}{7}\\\\ \text{Replacing x by y and y by x ,to get inverse of the function}\\\\y=\frac{2x+1}{7}\\\\f^{-1}(x)=\frac{2x+1}{7}[/tex]
Option C
