document.write( "Question 249112: The inverse function of y = 3x - 5 is what? \n" ); document.write( "
Algebra.Com's Answer #181537 by chosenpoint(26)![]() ![]() You can put this solution on YOUR website! To find the inverse of a function involving x and y, just replace the x's with y's, and the y's with x's, and solve for y once again: \r \n" ); document.write( "\n" ); document.write( "y=3x-5 given \r \n" ); document.write( "\n" ); document.write( "x=3y-5 replace the variables with one another \r \n" ); document.write( "\n" ); document.write( "0=3y-5-x subtract x from both sides \r \n" ); document.write( "\n" ); document.write( "-3y=-x-5 subtract 3y from both sides \r \n" ); document.write( "\n" ); document.write( "y=(-x-5)/(-3) divide both sides by -3 \r \n" ); document.write( "\n" ); document.write( "y=(x+5)/3 simplify and final answer \r \n" ); document.write( "\n" ); document.write( "If the original function had been f(x)=3x-5, you just need to replace f(x) with y before starting! :) \n" ); document.write( " |