SOLUTION: Determine which two functions are inverses of each other. f(x)=(x-8)/(2) g(x)=2x-8 h(x)=(x+8)/(2)

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Question 1178862: Determine which two functions are inverses of each other.
f(x)=(x-8)/(2) g(x)=2x-8 h(x)=(x+8)/(2)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Determine which two functions are inverses of each other:
g(x)=2x-8  h(x)=(x+8)/(2)
g^-1(x) = (x-8)/2

y = 2x-8  (exchange x&y)  x = 2y - 8 0r y = (x+8)/2 = g^-1(x)  checks.
y=(x+8)/(2) (exchange x&y) 2x = y + 8  0r  y = 2x - 8 = h^-1(x)  checks
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