20 points. ! what is the inverse of f(x)=3x+6 and is it a function?

The inverse of  is  and it is a function.======the inverse of  can be found by replacing function notation with y.    turns into  .then we swap x and y.    now we can solve for y to get an explicit equation for the inverse.  subtract 6 from both sides, then divide by 3 to isolate y.      is a function. it is a linear function, a straight line.it will pass the vertical line test.since the inverse is a function, we can replace y with the notation for an inverse function to f(x):    

Iam pretty sure its a sorry if im wrong