document.write( "Question 617173: What are the vertex, focus, and dirtectrix of the parabola with the given equation?\r
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document.write( "24y = x^2 - 10x + 145 \n" );
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Algebra.Com's Answer #388191 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! What are the vertex, focus, and dirtectrix of the parabola with the given equation? \n" ); document.write( "24y = x^2 - 10x + 145 \n" ); document.write( "complete the square \n" ); document.write( "24y=(x^2-10x+25)+145-25 \n" ); document.write( "24y=(x-5)^2+120 \n" ); document.write( "(x-5)^2=24y-120 \n" ); document.write( "(x-5)^2=24(y-5) \n" ); document.write( "This is an equation for a parabola that opens upwards. \n" ); document.write( "Its standard form: (x-h)^2=4p(y-k)< (h,k)=(x,y) coordinates of the vertex. \n" ); document.write( "For given equation:(x-5)^2=24(y-5) \n" ); document.write( "vertex:(5,5) \n" ); document.write( "4p=24 \n" ); document.write( "p=6 \n" ); document.write( "focus: (5,5+p) \n" ); document.write( "=(5,5+6) \n" ); document.write( "=(5,11) \n" ); document.write( "directrix: y=5-p=5-6=-1 \n" ); document.write( " \n" ); document.write( " |