document.write( "Question 1184258: If the line y + 2x = p does not intersect the curve y^2 = x + p, find the range of values of p \n" ); document.write( "
Algebra.Com's Answer #814810 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "If the line \"y+%2B+2x+=+p+\"does not intersect the curve \"y%5E2+=+x+%2B+p\", find the range of values of \"p\"\r
\n" ); document.write( "\n" ); document.write( "\"y+%2B+2x+=+p+\".......eq.1
\n" ); document.write( "\"y%5E2+=+x+%2B+p\"..........eq.2
\n" ); document.write( "___________________________ \r
\n" ); document.write( "\n" ); document.write( "\"y+=+p+-2x\".......eq.1
\n" ); document.write( "\"y+=+sqrt%28p%2Bx%29\"..........eq.2\r
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\n" ); document.write( "\n" ); document.write( "=> \"p+-2x=+sqrt%28p%2Bx%29\".....square both sides\r
\n" ); document.write( "\n" ); document.write( "\"%28p+-2x%29%5E2=+%28sqrt%28p%2Bx%29%29%5E2\"
\n" ); document.write( "\"p%5E2+-+4px+%2B+4x%5E2=+p%2Bx\"
\n" ); document.write( "\"p%5E2+-+4px+%2B+4x%5E2-+p-x=0\"\r
\n" ); document.write( "\n" ); document.write( "\"4x%5E2-+4px-x%2Bp%5E2++-+p=0\"
\n" ); document.write( "\"4x%5E2-+%284p%2B1%29x%2B%28p%5E2++-+p%29=0\"\r
\n" ); document.write( "\n" ); document.write( "use discriminant
\n" ); document.write( "the line will not intersect the curve if\r
\n" ); document.write( "\n" ); document.write( "\"b%5E2-4ac+%3C++0\" \r
\n" ); document.write( "\n" ); document.write( "\"b%5E2-4ac+%3C0\"....\"a=4\", \"b=-+%284p%2B1%29\", \"c=%28p%5E2++-+p%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28-+%284p%2B1%29%29%5E2-4%2A4%28p%5E2++-+p%29+%3C0\"
\n" ); document.write( "\"16p%5E2+%2B+8+p+%2B+1-16p%5E2++%2B16+p+%3C++0++\"
\n" ); document.write( " \"8p+%2B+1+++%2B16p+%3C++0\"
\n" ); document.write( " \"24p+++%2B1%3C0\"
\n" ); document.write( "\"p+%3C++-1%2F24+\"\r
\n" ); document.write( "\n" ); document.write( "the line will not intersect the curve if \"p+%3C++-1%2F24+\"\r
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