document.write( "Question 1066692: Hi!\r
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document.write( "I need to find the following focus points of the following parabola!
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document.write( "y=7*x^2\r
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document.write( "y=2*x^2-2x-2 \n" );
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Algebra.Com's Answer #681913 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! y = 7x^2 \n" ); document.write( ": \n" ); document.write( "Note that a = 7 and the vertex of this parabola is (0, 0) then, the focus is (0, 0+(1/4a) = (0, 1/28) \n" ); document.write( ": \n" ); document.write( "y = 2x^2 -2x -2 = 2(x - (1/2))^2 - (5/2) \n" ); document.write( ": \n" ); document.write( "Note a = 2, and the vertex is ( (1/2), (-5/2) ) then the focus is ( (1/2), (-5/2 + (1/8) ) = ( (1/2), (-19/8) ) \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |