document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=290413>Question 290413</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that g(x)    is a linear function  and also that  g(1)=12 and  g(-2)=-3.    Find an  algebraic formula for g(x)  . </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #210140 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=210140\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is just a fancier way of asking for an equation of a line through two points.<BR>\n" );
document.write( "(1,12)<BR>\n" );
document.write( "(-2,-3)<BR>\n" );
document.write( "They you you to call it g(x) instead of y<BR>\n" );
document.write( "(y-y)/(x-x)=m<BR>\n" );
document.write( "after you have found m then you need to find b<BR>\n" );
document.write( "y=mx+b<BR>\n" );
document.write( "substitute m,(either  x and y ) and find b<BR>\n" );
document.write( "When you are done call it g(x)=mx+b inserting your new values of m and b<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );