document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=206143>Question 206143</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i graph the lines by using equations from x(-3,3) and how do i determine the gradient of y-intercept, showing the domain and range in eachcase A y=2x+1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155984 by </B><A HREF=/tutors/aboutme.mpl?userid=RAY100><B>RAY100(1637)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RAY100><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=155984\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The  question is  not  specific,  but  reading  between  the  lines, let's  solve  what  we  know<BR>\n" );
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document.write( "If  base  eqn  is,,,,,y=2x+1,,,,slope  is  2,  and  y intercept  is  1<BR>\n" );
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document.write( "a  line  parallel  to  this  also  has  slope  of  2.<BR>\n" );
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document.write( "to  define  y  intercept, insert  point ( -3,3 ) into  eqn  with  same  slope<BR>\n" );
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document.write( "y= 2x +b,,,,,(3) =2(-3) +b ,,,,,,b=9   (y intercept)<BR>\n" );
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document.write( "or  new  eqn  is  ,,,,,y=2x+9<BR>\n" );
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document.write( "a  line  perpendicular  to  original, has  slope =  negative  reciprocal <BR>\n" );
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document.write( "y= -1/2 x +b,,,,inserting (-3,3),,,(3) = (-1/2)(-3) +b,,,,and  b= 1.5<BR>\n" );
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document.write( "or  new  eqn  is  y=-1/2 x +1.5<BR>\n" );
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document.write( "The  Domain  and  Range  of all lines  is (- infinity, + infinity)<BR>\n" );
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document.write( "or  ALL REAL  NUMBERS<BR>\n" );
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document.write( "Points  of  theory  are:  y = mx +b,  with  m=slope,  b= y intercept<BR>\n" );
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document.write( "parallel  lines  have  m1=m2,  but  perpendicular  lines  have  m2=-1/m1<BR>\n" );
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document.write( "to  consider  a  point,  insert  in  equation  and  solve  for  b<BR>\n" );
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document.write( "Hopefully  this  helps,  if  not  pls  resubmit  problem  thanks\r<BR>\n" );
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document.write( ". </SPAN>\n" );
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