if y = f(x) = x + 2/x-1, then

if y = f(x) = x + 2/x-1, then

a.  f(1) = 3

b.  none of the opttions

c.  x = f(y)

y increase with x for x < 1
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1 Answer

If y=f(x)=(x+2)/(x-1) then:

y(x-1)=x+2, xy-y=x+2, xy-x=y+2, x=(y+2)/(y-1)=f(y), answer c.

by Top Rated User (1.2m points)

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