document.write( "Question 424324: Find the interval on which the function is increasing\r
\n" ); document.write( "\n" ); document.write( "a) f(x) = |x+1|\r
\n" ); document.write( "\n" ); document.write( "b) f(x) = x^3\r
\n" ); document.write( "\n" ); document.write( "c) f(x) = x^4\r
\n" ); document.write( "\n" ); document.write( "d) f(x) = (1)/(x^2+1)\r
\n" ); document.write( "\n" ); document.write( "Please help me
\n" ); document.write( "Thank youuuuu \n" ); document.write( "

Algebra.Com's Answer #295875 by robertb(5830) $\"\"$ $\"About$

You can put this solution on YOUR website!
a) [-1, $\"infinity\"$ )\r
\n" ); document.write( "\n" ); document.write( "b) ( $\"-infinity\"$ , $\"infinity\"$ )\r
\n" ); document.write( "\n" ); document.write( "c) [0, $\"infinity\"$ )\r
\n" ); document.write( "\n" ); document.write( "d) ( $\"-infinity\"$ , 0] \n" ); document.write( "

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