document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1001381>Question 1001381</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write and equation in standard form, factores form, and vertex form for a parabola with a vertex of (6,-15.2)\r<BR>\n" );
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document.write( "x-intercepts: (2,0) and (10,0) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618598 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=618598\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Make a plan for what to do.  One possible plan could be this:\r<BR>\n" );
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document.write( "(1) Use factored form according to the x-intercepts but keep the constant factor, \"a\", as variable.<BR>\n" );
document.write( "(2) Solve the equation for the factor \"a\", and substitute the vertex coordinates to find the value of \"a\".<BR>\n" );
document.write( "(3) Express the completed equation in factored form.<BR>\n" );
document.write( "(4) Write in standard form according to the known vertex (already given) and now known factor, \"a\".  Understand, STANDARD FORM is the same as VERTEX FORM.\r<BR>\n" );
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document.write( "You could instead simply do this, for a different plan:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=a%28x-6%29%5E2-15.2 ALIGN=MIDDLE  ALT=\"y=a%28x-6%29%5E2-15.2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=%28y%2B15.2%29%2F%28x-6%29%5E2 ALIGN=MIDDLE  ALT=\"a=%28y%2B15.2%29%2F%28x-6%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "use either of the x-intercepts<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=15.2%2F%2810-6%29%5E2 ALIGN=MIDDLE  ALT=\"a=15.2%2F%2810-6%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=15.2%2F16 ALIGN=MIDDLE  ALT=\"a=15.2%2F16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=0.95 ALIGN=MIDDLE  ALT=\"a=0.95\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and you have the standard form equation as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%280.95%29%28x-6%29%5E2-15.2 ALIGN=MIDDLE  ALT=\"y=%280.95%29%28x-6%29%5E2-15.2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Getting factored form from this may be more difficult than using the plan described first, above. </SPAN>\n" );
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