document.write( "Question 1039319: Find the inverse function of f.
\n" ); document.write( "f(x)= 7 - 4x^3 \n" ); document.write( "
Algebra.Com's Answer #654070 by ankor@dixie-net.com(22740)\"\" \"About 
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Find the inverse function of f.
\n" ); document.write( "f(x)= 7 - 4x^3
\n" ); document.write( "y = 7 - 4x^3
\n" ); document.write( "swap x and y
\n" ); document.write( "x = 7 - 4y^2
\n" ); document.write( "solve for y
\n" ); document.write( "x - 7 = -4y^3
\n" ); document.write( "\"%28%28x-7%29%29%2F%28-4%29%29%29\" = y^3
\n" ); document.write( "find the cube root of both sides
\n" ); document.write( "y = \"3sqrt%28%28x-7%29%2F-4%29\"
\n" ); document.write( "looks something like this, the green line should go negative just like the red
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