Posted by ladybug on Saturday, October 6, 2012 at 1:56pm.
y = 4/x - 7
x = 4/(y+7)
so, f(x) = 4/x - 7
f^-1(x) = 4/(x+7)
do the graphs here:
http://rechneronline.de/function-graphs/
If yu meant y = 4/(x-7), of course, things are different.
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