Answer:
[tex] {f}^{ - 1} (x) = \frac{x}{5} [/tex]
Step-by-step explanation:
f(x) = 5x
To find f^-1(x) equate f(x) to y
That's f(x) = y
y = 5x
Interchange the variables
x = 5y
Make y the subject by dividing both sides by 5
y = x/5
The final answer is
f^-1(x) = x/5
Hope this helps you.
