document.write( "Question 56080: Given f(x)=3x+4
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document.write( "Find f -1(x) \n" );
document.write( "
Algebra.Com's Answer #38061 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! There are a few different ways to do this, and I don't want to conflict with your teacher or your textbook, but I like to find the inverse function in TWO steps: 1. Interchange the x and y, and 2. Solve for y.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, y = 3x+4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 1: Interchange the x and y: \n" ); document.write( "x= 3y +4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Step 2: Solve for y: \n" ); document.write( "x-4 = 3y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide both sides by 3: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( " |