document.write( "Question 389636: For the function f(x)= (2x^3+3x-5)/(x^2+x-30)\r
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document.write( "a) The slant asymptote is __________\r
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document.write( "b) The vertical asymptotes are __________ \n" );
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Algebra.Com's Answer #276176 by haileytucki(390)![]() ![]() You can put this solution on YOUR website! f(x)=(2x^(3)+3x-5)/(x^(2)+x-30)\r \n" ); document.write( "\n" ); document.write( "Factor the polynomial using the rational roots theorem. \n" ); document.write( "f(x)=((x-1)(2x^(2)+2x+5))/(x^(2)+x-30)\r \n" ); document.write( "\n" ); document.write( "In this problem 6*-5=-30 and 6-5=1, so insert 6 as the right hand term of one factor and -5 as the right-hand term of the other factor. \n" ); document.write( "f(x)=((x-1)(2x^(2)+2x+5))/((x+6)(x-5))\r \n" ); document.write( "\n" ); document.write( "The domain of an expression is all real numbers except for the regions where the expression is undefined. This can occur where the denominator equals 0, a square root is less than 0, or a logarithm is less than or equal to 0. All of these are undefined and therefore are not part of the domain. \n" ); document.write( "(x+6)(x-5)=0\r \n" ); document.write( "\n" ); document.write( "Solve the equation to find where the original expression is undefined. \n" ); document.write( "x=-6,5\r \n" ); document.write( "\n" ); document.write( "The domain of the rational expression is all real numbers except where the expression is undefined. \n" ); document.write( "x$-6,x$5_(- \n" ); document.write( "\n" ); document.write( "The vertical asymptotes are the values of x that are undefined in the function. \n" ); document.write( "x=-6_x=5\r \n" ); document.write( "\n" ); document.write( "A horizontal asymptote can potentially be found by finding the limit of the function as the value approaches \n" ); document.write( "L[x: \n" ); document.write( "\n" ); document.write( "The value of L[x: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are no horizontal asymptotes because the limit does not exist. \n" ); document.write( "No horizontal asymptote approaching \n" ); document.write( "\n" ); document.write( "A horizontal asymptote can potentially be found by finding the limit of the function as the value approaches - \n" ); document.write( "L[x:- \n" ); document.write( "\n" ); document.write( "The value of L[x:- \n" ); document.write( "- \n" ); document.write( "\n" ); document.write( "The horizontal asymptote is the value of y as x approaches - \n" ); document.write( "y=- \n" ); document.write( "\n" ); document.write( "Complete the polynomial division of the expression to determine if there is any remainder. \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Split the solution into the polynomial portion and the remainder. \n" ); document.write( "2x-2+(65x-65)/(x^(2)+x-30)\r \n" ); document.write( "\n" ); document.write( "The oblique asymptote is the polynomial portion of the long division result. \n" ); document.write( "y=2x-2\r \n" ); document.write( "\n" ); document.write( "This is the set of all asymptotes for f(x)=((x-1)(2x^(2)+2x+5))/((x+6)(x-5)). \n" ); document.write( "Vertical Asymptote: x=-6,x=5_Horizontal Aysmptote:y=-Infinite_Oblique Aysmptote:y=2x-2 |