document.write( "Question 1182973: a) Sketch the polynomial defined by the
\n" ); document.write( "following:
\n" ); document.write( "f(x) is cubic
\n" ); document.write( "f(x) ≥ 0 when x ≤ 2
\n" ); document.write( "f(x) < 0 when x > 2
\n" ); document.write( "f(0) = 4\r
\n" ); document.write( "\n" ); document.write( "b) Write an equation for f(x) in general form.\r
\n" ); document.write( "\n" ); document.write( "I need your help!! thanks
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Algebra.Com's Answer #813105 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "In order for it to be positive before and negative after \"x=2\", then it must look like this,
\n" ); document.write( "\"f%28x%29=a%28x-2%29%5E3\"
\n" ); document.write( "or else you will have an additional set of directional changes.
\n" ); document.write( "So now solve for the constant.
\n" ); document.write( "After \"x=2+\"the cubic will be positive so the constant needs to be negative.\r
\n" ); document.write( "\n" ); document.write( "So,\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29=-a%28x-2%29%5E3\"\r
\n" ); document.write( "\n" ); document.write( "\"f%280%29=-a%280-2%29%5E3=4\"\r
\n" ); document.write( "\n" ); document.write( "\"a=4%2F8\"\r
\n" ); document.write( "\n" ); document.write( "\"a=1%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%29=-%281%2F2%29%28x-2%29%5E3\"\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+-%281%2F2%29%28x-2%29%5E3%29+\"\r
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