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Mathematics
Cristopher Leach
20 March, 18:44
Find the inverse of f (x) = - 4/x-1 + 2
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Alisa Horne
20 March, 19:46
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The inverse f-1 (x) = (2 - x) / 4 + 1.
Step-by-step explanation:
Let y = - 4 / (x - 1) + 2
-4 / (x - 1) = y - 2
x - 1 = (y - 2) / - 4
x = - (y - 2) / 4 + 1
x = (2 - y) / 4 + 1
Now replace x by f-1 (x) (the inverse) and y by x:
f-1 (x) = (2 - x) / 4 + 1.
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