document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=606858>Question 606858</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Consider a quadratic function that has a minimum value of -6, and x-intercepts at (-6,0) and (0,0).<BR>\n" );
document.write( "A)Determine the equation of the quadratic function. Show or explain your work.\r<BR>\n" );
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document.write( "....please help me! I really want to understand how to do this. I'm not sure how and what the answer would be.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #382289 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=382289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Consider a quadratic function that has a minimum value of -6, and x-intercepts at (-6,0) and (0,0)<BR>\n" );
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document.write( "Plot the x-intercepts<BR>\n" );
document.write( "Since the minimum y-value is -6<BR>\n" );
document.write( "the vertex must be at (-3,-6)<BR>\n" );
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document.write( "y = a(x-0)(x-(-6))<BR>\n" );
document.write( "Solve for \"a\":<BR>\n" );
document.write( "-6 = a(-3)(-3+6)<BR>\n" );
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document.write( "-6 = a(-3)(3)<BR>\n" );
document.write( "a = 6/9 = 2/3<BR>\n" );
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document.write( "y = (2/3)x(x+6)<BR>\n" );
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document.write( "y = (2/3)(x^2+6x)<BR>\n" );
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document.write( "y = (2/3)x^2 + 4x<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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