document.write( "Question 279162: find f^-1(x) f(x)= -8x + 48 \n" ); document.write( "
Algebra.Com's Answer #203027 by stanbon(75887)\"\" \"About 
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Find f^-1(x) if f(x)= -8x + 48
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\n" ); document.write( "y = -8x + 48
\n" ); document.write( "Interchange x and y to get:
\n" ); document.write( "x = -8y + 48
\n" ); document.write( "Solve for \"y\":
\n" ); document.write( "-8y = x-48
\n" ); document.write( "y = -(x-48)/8
\n" ); document.write( "That is f^-1(x)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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