document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62755>Question 62755</A>: <I><SPAN STYLE=\"word-break: break-all;\"> DETERMINE THE VERTEX OF y=x2-8x+22. </SPAN>\n" );
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document.write( "y= x2-8x+22.\r<BR>\n" );
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document.write( "The given function looks like a quadratic equation, we get a = 1, b =-8 and c = 22\r<BR>\n" );
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document.write( "The vertex is given by  (-b /2a) = [ -(-8)/ 2 *1]\r<BR>\n" );
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document.write( "                                 = [ 8 /2] = 4\r<BR>\n" );
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document.write( "The y value is given when you substitute x = 4in equation(1), we get\r<BR>\n" );
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document.write( "y = 4^2 -8*4 + 22 = 16 - 32 + 22 = 38 -32 = 6\r<BR>\n" );
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document.write( "y = 6\r<BR>\n" );
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document.write( "Now the vertex is (x ,y) = (4 ,6) </SPAN>\n" );
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