document.write( "Question 1066409: Given that f(x)=px + q and g(x)= rx + s prove that fog=gof if and only if s(p-1) = q(r-1) \n" ); document.write( "

Algebra.Com's Answer #681756 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"f%28g%29=p%28rx%2Bs%29%2Bq=prx%2Bps%2Bq\"$
\n" ); document.write( " $\"g%28f%29=r%28px%2Bq%29%2Bs=prx%2Bqr%2Bs\"$
\n" ); document.write( "If $\"f%28g%29=g%28f%29\"$ , then
\n" ); document.write( " $\"prx%2Bps%2Bq=prx%2Bqr%2Bs\"$
\n" ); document.write( " $\"ps%2Bq=qr%2Bs\"$
\n" ); document.write( " $\"ps-s=qr-q\"$
\n" ); document.write( " $\"s%28p-1%29=q%28r-1%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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