alvarotrevino11
alvarotrevino11
24-11-2016
Mathematics
contestada
If f(x)=7-9x, find f^-1=(5).
Respuesta :
maryam2sadia
maryam2sadia
25-11-2016
Replace f(x) with y
Swap x and y
Multiply both sides by y-2
Distribute
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