document.write( "Question 690551: function question: if f(x)= \"%285x%2BB%29%2F%282x-A%29\" and f(2)=0, f(4)=undefined, then find A and B.\r
\n" ); document.write( "\n" ); document.write( "I appreciate any help
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Algebra.Com's Answer #426332 by Stitch(470)\"\" \"About 
You can put this solution on YOUR website!
Given: \"%285X%2BB%29%2F%282X-A%29\"\r
\n" ); document.write( "\n" ); document.write( "When X = 2, the function = 0
\n" ); document.write( "When X = 4, the function is undefinded (division by zero)\r
\n" ); document.write( "\n" ); document.write( "A function is undefined when the denominator is equal to zero
\n" ); document.write( "That means that when X = 4, that 2X - A = 0
\n" ); document.write( "\"2%2A%284%29+-+A+=+0\"
\n" ); document.write( "\"8+-+A+=+0\"
\n" ); document.write( "\"highlight%288+=+A%29\"\r
\n" ); document.write( "\n" ); document.write( "The function is zero when the numerator is equal to zero.
\n" ); document.write( "That happens when X = 2
\n" ); document.write( "\"5%2A%282%29+%2B+B+=+0\"
\n" ); document.write( "\"10+%2B+B+=+0\"
\n" ); document.write( "\"highlight_green%28B+=+-10%29\"
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