document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=145532>Question 145532</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i need to find the x-intercept, y-intercept, axis of symmetry, and vertex of these two problems and don't know how to find any of those\r<BR>\n" );
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document.write( "1. f(x)=x^2-6x+8\r<BR>\n" );
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document.write( "2. f(x)=-x^2+10x-16\r<BR>\n" );
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document.write( "Please help me! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #106198 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=106198\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2-6x+8=y<BR>\n" );
document.write( "x^2-6x+8=0 when y=0 you have the x intercepts.<BR>\n" );
document.write( "(x-4)(x-2)=0<BR>\n" );
document.write( "x=4, x=2 the x intercepts<BR>\n" );
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document.write( "x^2-6x+8=y<BR>\n" );
document.write( "y=8 when x=0 The y intercept.<BR>\n" );
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document.write( "The axis of symmetry is a vertical line 1/2 way between the x intercepts.<BR>\n" );
document.write( "x=3 This is also the x-coordinate of the vertex.<BR>\n" );
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document.write( "The y coordinate of the vertex is -(b^2-4ac)/4a=-(36-(4*1*8))/(4*1)=-(36-32)/4=-4/4=-1<BR>\n" );
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document.write( "Ed<BR>\n" );
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document.write( "Check these numbers with the graph to understand what they mean.<BR>\n" );
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