document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=896695>Question 896695</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a multiple questions, please help me<BR>\n" );
document.write( "1 for what condition is the vertex of the graph of the equation y=ax^2+bx+c the highest point of the graph ?<BR>\n" );
document.write( "2 describe an algebraic method for determining the x intercepts, if any of a parabola whose equation is y=ax^2+bx+c <BR>\n" );
document.write( "3 suppose that the graph of y=ax^2+bx+c is parabola whose vertex is V(-3,7). What is the algebraic interpretation of the 2nd coordinate 7 ?<BR>\n" );
document.write( "It is okay if you will not graph the answers . </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #543728 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=543728\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1) we want a parabola that opens downward, this means that a must be negative<BR>\n" );
document.write( "that is in the equation y = ax^2 +bx + c, the a constant is negative (a < 0)<BR>\n" );
document.write( "2) Solve the equation y = ax^2 +bx +c for x by setting ax^2 +bx +c = 0 and using the quadratic formula to solve, x = (-b + or - square root of b^2 -4ac) / 2a<BR>\n" );
document.write( "3) V is a point on the parabola with x = -3 and y =7, therefore<BR>\n" );
document.write( "7 = a(-3)^2 +b(-3) +c<BR>\n" );
document.write( "7 = 9a -3b +c<BR>\n" );
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