Question

FIND THE INVERSE

Answer 1

be unique x, then relocating x and f(x), then replace f(x) by f^-1(x) ;)
try it

Answer 2

I KNOW.. but i forgot how to do that could you show me how to do it? i don't just want the answer.. I want to learn how to do it.

Answer 3

\[f(x) = y = \frac{ 3x-4 }{ 5 }\]\[5y = 3x - 4\]\[5y + 4 = 3x\]\[\frac{ 5y+4 }{ 3 } = x\]now relocating y and x\[y = \frac{5x +4}{3}\]and finally replace y by f^-1(x)\[f^{-1}(x) = \frac{5x+4}{3}\]is it clear? ;)

Answer 4

how did you know 5 equaled Y?

Answer 5

5 equaled y? where is say it?

Answer 6

it says 5y

Answer 7

where i say it? ;)

Answer 8

\(\bf f(x) \implies \color{red}{y} = \cfrac{ 3\color{blue}{x}-4 }{ 5 }\\
f^{-1}(x) \implies \color{blue}{x} = \cfrac{ 3\color{red}{y}-4 }{ 5 }\)
then solve for "y"

Answer 9

oooooh

Answer 10

just multiply 5 to y!