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Answer:
- f(x) = (x -25)/(5x -5)
- x ≠ 1
Step-by-step explanation:
To find f(x), you can replace x in the given function with (x/5).
f(5(x/5)) = (x/5 -5)/(5(x/5) -1)
f(x) = (x/5 -5)/(x -1)
f(x) = (x -25)/(5(x -1))
f(x) = (x -25)/(5x -5)
The only domain restriction is that x cannot make the denominator zero:
x cannot be 1. (The domain is all real numbers except 1.)
