document.write( "Question 44662This question is from textbook Algebra and Trigonometry with Analytic geometry
\n" );
document.write( ": For the function defined by f(x)=5x-4, find a formula for f^-1(x). This one I tried many ways of finding an answer. My answer is f^-1(x)= 1 divided by 5x-4 but not sure if thats right. Thanks for checking my answer. \n" );
document.write( "
Algebra.Com's Answer #29658 by Nate(3500) ![]() You can put this solution on YOUR website! f^-1(x) means inverse of that function \n" ); document.write( "f(x) = 5x - 4 \n" ); document.write( "y = 5x - 4 \n" ); document.write( "x = 5y - 4 \n" ); document.write( "x + 4 = 5y \n" ); document.write( "0.2x + 0.8 = y \n" ); document.write( "0.2x + 0.8 = f^-1(x) \n" ); document.write( " |