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2 votes
Perform the requested operation or operations. f(x) = x-5/8 g(x) = 8x + 5 find g(f(x))

2 Answers

4 votes
just to confirm is it x-5/8 or (x-5)/8
User Robert Dodier
by
5.4k points
3 votes
We assume

f(x)=(x-5)/(8)
When this is written using plain text, parentheses are required in order to show what the numerator of the fraction is: f(x) = (x-5)/8.

g(f(x)) = g((x-5)/8)
= 8((x-5)/8) +5
= (x-5) +5
= x

g(f(x)) = x
User Hamon
by
6.2k points