document.write( "Question 730578: classify conic sections x^2 - 14x - 9y + 22 = 0 write standard form \n" ); document.write( "
Algebra.Com's Answer #446739 by josgarithmetic(39620)\"\" \"About 
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x squared and y to the power of 1; the equation is a parabola.\r
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\n" ); document.write( "\n" ); document.write( "For standard form, solve for y as a function of x and then complete the square for x. Do you want more complete help? \r
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\n" ); document.write( "\n" ); document.write( "\"Yes\", so then...\r
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\n" ); document.write( "\n" ); document.write( "INCLUDING SOME DETAILS:\r
\n" ); document.write( "\n" ); document.write( "Conic sections will have one or more variables in degree 2, with variables
\n" ); document.write( "to degree no higher than 2. This is how you know your equation is a conic
\n" ); document.write( "section. Parabolas have one variable to degree 2 and the other variable (if
\n" ); document.write( "it's a two-variable equation) to degree 1. This then is how we know your
\n" ); document.write( "equation is a parabola.\r
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\n" ); document.write( "\n" ); document.write( "Now, some of the process to start toward standard form.
\n" ); document.write( "\"x%5E2+-+14x+-+9y+%2B+22+=+0\"\r
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\n" ); document.write( "\n" ); document.write( "Solve for y.
\n" ); document.write( "\"x%5E2-14x%2B22=9y\", by just adding +9y to both sides
\n" ); document.write( "\"y=%281%2F9%29x%5E2-%2814%2F9%29x%2B22%2F9\"
\n" ); document.write( "\"y=%281%2F9%29x%5E2-%281%2F9%29%2A14x%2B22%2F9\"
\n" ); document.write( "We want an expression in x with coefficient of 1 to which we
\n" ); document.write( "may Complete the Square...
\n" ); document.write( "\"y=%281%2F9%29%28x%5E2-14x%29%2B22%2F9\"\r
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\n" ); document.write( "\n" ); document.write( "Complete The Square.
\n" ); document.write( "Now we need to use the term, \"%2814%2F2%29%5E2=49\" and ADD it and SUBTRACT
\n" ); document.write( "it to the right-hand side... You need to study to know why and how that value
\n" ); document.write( "was picked...
\n" ); document.write( "\"y=%281%2F9%29%28x%5E2-14x%2B49%29%2B22%2F9+-49%2F9\", be sure you understand this step perfectly.
\n" ); document.write( "\"y=%281%2F9%29%28x-7%29%5E2-27%2F9\"
\n" ); document.write( "\"highlight%28y=%281%2F9%29%28x-7%29%5E2-3%29\", DONE!\r
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