document.write( "Question 79487This question is from textbook Algebra 2
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document.write( ": Identify the conic section represented by each equation. If it is a parabola, give the vertex. If it is a circle, give the center and radius. If it is an ellipse or a hyberbola, give the center and foci. Sketch the graph.
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Algebra.Com's Answer #57046 by Edwin McCravy(20059)![]() ![]() You can put this solution on YOUR website! Identify the conic section represented by each equation. If it is a parabola, give the vertex. If it is a circle, give the center and radius. If it is an ellipse or a hyberbola, give the center and foci. Sketch the graph.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is a parabola because it only has ONE squared letter.\r \n" ); document.write( "\n" ); document.write( "Get all the terms in the squared letter on the left and \n" ); document.write( "all other terms on the right:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Factor out the coefficient of \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Complete the square by adding 1 inside the parentheses \n" ); document.write( "on the left. However note that when we placing a 1 \n" ); document.write( "inside the parentheses on the left, we are really adding 3 \n" ); document.write( "because of the 3 multiplier in front of the parentheses \n" ); document.write( "so we must add 3 to the right side to offset.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Factor the trinomial on the left side as a perfect square, \n" ); document.write( "and combine terms on the right:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply both sides by \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now the equation is in the form:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "where the vertex is (h,k) = (2,1)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |