Question

What's the inverse function of 1/5x -7?

Answer 1

Can you isolate 'x' from below?
\[ y = \frac{1}{5x-7}\]

Answer 2

that's the actual function

Answer 3

whateve ... can you isolate x from there?

Answer 4

Do you know @genius12

Answer 5

\[y=\frac{ 1 }{ 5x-7 }\]To get the inverse, we switch the x with the y and solve for y, like this:\[x=\frac{ 1 }{ 5y-7 }\rightarrow 5y-7=\frac{ 1 }{ x } \rightarrow y=\frac{ \frac{ 1 }{x }+7 }{ 5 } \rightarrow y=\frac{ \frac{ 7x+1 }{ x } }{ 5 } \rightarrow y=\frac{ 7x+1 }{ 5x }\]

Answer 6

ExperimentX is correct To make a black box that works the other way, rearrange so that x is is subject of the equation.