document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=414397>Question 414397</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i solve and graph   y=x^2+6x-7?  i know i have to use x=-b/2a but i'm confused on exactly how this works. i've been sick and have missed 4 days of school and need help. thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #290662 by </B><A HREF=/tutors/aboutme.mpl?userid=woolybear><B>woolybear(13)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=woolybear><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=woolybear><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=290662\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=x^(2)+6x-7\r<BR>\n" );
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document.write( "To find the x-intercept, substitute in 0 for y and solve for x.<BR>\n" );
document.write( "(0)=x^(2)+6x-7\r<BR>\n" );
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document.write( "Since x is on the right-hand side of the equation, switch the sides so it is on the left-hand side of the equation.<BR>\n" );
document.write( "x^(2)+6x-7=(0)\r<BR>\n" );
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document.write( "Remove the parentheses around the expression 0.<BR>\n" );
document.write( "x^(2)+6x-7=0\r<BR>\n" );
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document.write( "In this problem 7*-1=-7 and 7-1=6, so insert 7 as the right hand term of one factor and -1 as the right-hand term of the other factor.<BR>\n" );
document.write( "(x+7)(x-1)=0\r<BR>\n" );
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document.write( "Set each of the factors of the left-hand side of the equation equal to 0.<BR>\n" );
document.write( "x+7=0_x-1=0\r<BR>\n" );
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document.write( "Since 7 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 7 from both sides.<BR>\n" );
document.write( "x=-7_x-1=0\r<BR>\n" );
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document.write( "Set each of the factors of the left-hand side of the equation equal to 0.<BR>\n" );
document.write( "x=-7_x-1=0\r<BR>\n" );
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document.write( "Since -1 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 1 to both sides.<BR>\n" );
document.write( "x=-7_x=1\r<BR>\n" );
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document.write( "The complete solution is the set of the individual solutions.<BR>\n" );
document.write( "x=-7,1\r<BR>\n" );
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document.write( "To find the y-intercept, substitute in 0 for x and solve for y.<BR>\n" );
document.write( "y=(0)^(2)+6(0)-7\r<BR>\n" );
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document.write( "Expand the exponent (2) to the expression.<BR>\n" );
document.write( "y=(0^(2))+6(0)-7\r<BR>\n" );
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document.write( "Squaring a number is the same as multiplying the number by itself (0*0).  In this case, 0 squared is 0.<BR>\n" );
document.write( "y=(0)+6(0)-7\r<BR>\n" );
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document.write( "Multiply 6 by each term inside the parentheses.<BR>\n" );
document.write( "y=0+0-7\r<BR>\n" );
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document.write( "Solve the equation.<BR>\n" );
document.write( "y=-7\r<BR>\n" );
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document.write( "These are the x and y intercepts of the equation y=x^(2)+6x-7.<BR>\n" );
document.write( "x=-7,1, y=-7 </SPAN>\n" );
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