Question

how do i determine f^-1(x) when f(x)={(3,5)(2,4),(1,7)}

Answer 1

So when i put solutions to f(x) in the form of points (x,y), im saying:
f(x) = y, i give the function an 'x', it gives me a 'y'
f inverse's job is if i give it a 'y', it will give me the 'x', soit should be something like:
\[f^-1(y) = x\]

Answer 2

whoops:
\[f^{-1}(y) = x\]

Answer 3

soits the inverse of what

Answer 4

So if f(3) = 5 (from your problem), then
\[f^{-1}(5) = 3\]
and the point it would create is (5,3)

Answer 5

so i do that for all three of the sets

Answer 6

yes :)

Answer 7

thanks