document.write( "Question 1073402: Find the distance between the points of intersection of the graphs of y = 2x2 – 4x+ 1 and 2x - y = - 21. \n" ); document.write( "
Algebra.Com's Answer #688221 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
\"2x%5E2-4x%2B1=2x%2B21\" will give the x coordinates of the intersection points.\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2B2%29%28x-5%29=0\"\r
\n" ); document.write( "\n" ); document.write( "x coordiantes -2 and 5.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=2x%2B21\"
\n" ); document.write( "If x is -2, then point (-2,17)
\n" ); document.write( "If x is 5, then point (5,31).\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "DISTANCE BETWEEN (-2,17) and (5,31):
\n" ); document.write( "\"sqrt%28%285-%28-2%29%29%5E2%2B%2831-17%29%5E2%29\"------evaluate this.
\n" ); document.write( "-
\n" ); document.write( "\"sqrt%2849%2B14%5E2%29\"
\n" ); document.write( "\"sqrt%2849%2B196%29\"
\n" ); document.write( "\"sqrt%28245%29\"
\n" ); document.write( "\"7sqrt%285%29\"
\n" ); document.write( "
\n" );