document.write( "Question 1141925: F(x)=10x
\n" );
document.write( "G(x)=x+3
\n" );
document.write( "
\n" );
document.write( "Find 1. F(g)(x)
\n" );
document.write( " 2. The inverse of f(g)
\n" );
document.write( " 3. The inverse of g(f)
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #762628 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Don't mix cases. In a single problem, F(x) and f(x) could be very different functions. \n" ); document.write( "1. f(g(x)) = f(x+3) = 10(x+3) \n" ); document.write( "2. inverse of f(g) \n" ); document.write( "g adds 3 to the input; f multiplies the input by 10. \n" ); document.write( "So f(g(x)) adds 3 to the input and then multiplies it by 10. \n" ); document.write( "The inverse does the opposite operations in the opposite order: divide by 10 and subtract 3. \n" ); document.write( "ANSWER: inverse of f(g(x)) = (x/10)-3 \n" ); document.write( "3. inverse of g(f) \n" ); document.write( "(similar explanation...) \n" ); document.write( "ANSWER: inverse of g(f(x)) = (x-3)/10 \n" ); document.write( " |