kamarhyiairall
kamarhyiairall
31-01-2017
Mathematics
contestada
Let f(x) = 5x + 12. Find f−1(x).
Respuesta :
David1993
David1993
31-01-2017
Replace,
x = y
Or
x = f(x)
then us stay:
x = 5y + 12
Isolate 5y
5y = x - 12
Dividing both the sides by 5
y = x/5 - 12/5
Then, replace y = f^-(x)
f^-(x) = x/5 - 12/5
Hope this helps
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