.MCAD 309000000 \  docDocument MmcObject[  d2_graph_format graphData% axisFormat)L)Ltrace2D&&&&&&&&& & & & & &&& dim_formatTmasslengthtimecharge temperature luminosity substanceNumericalFormatQdii shpRectVNmcDocumentObjectState\ mcPageModelK????mcHeaderFooterI@I CHeaderFooterJ@J@J@JMbP?MbP? TextState? TextStyle>@ Helvetica0,0,255Serial_ParPropDefaultW?Normalfont_style_listO font_styleP  VariablesTimes@P  ConstantsTimes@P Text Helvetica@P Greek VariablesSymbol@P User^1 Helvetica@P User^2Courier@P User^3Times@P User^4Geneva@P User^5New York@P User^6Monaco@P User^7Chicago@P SymbolsSymbol@P Current Selection FontArial@P Undefined Font@P Header Helvetica@P Footer Helvetica@P Rotated Math FontTimes' TextRegion* docRegionGshpBoxU?C(?$  CharacterMap-RangeMap;7Suppose we want to fit a straight line to a data set  ChrPropMap77 RangeElem<7  ChrPropData8 RangeData= Helvetica ParPropMap97 <7  ParPropData:@W,EmbedMap1 <LinkMap/7 <7LinkData0@ Normal Helvetica eqRegionB@U?F[utree@ p@@ @@dM@@p@@0@@0A@@0A@@0A@@0A@@0A@@@@@5@@3@@1@@2@@1 @@0!*@UdSyu[ -a sample data set79"<#:@W1$</%<&0@ Normal Helvetica '@B@U6zF(@@ p)@@ (*@@d)i+@@),@@t+0-@@+2.@B@U6R/@@ p0@@ /1@@@02@@d1X3@@1i4@@05@@d4M6@@ 47@@d6i8@@609*@UX ---&read the data into the vectors X and Y7&9&:<&;:@W1<</&=<&>0@ Normal Helvetica ?@B@U6R@@@@ p@A@@ @@@B@@@@A@C@@d@BY@D@@@Bi@E@@@A@F@@d@EM@G@@ @E@H@@d@Gi@I@@@G1@J@B@UoS@K@@ p@L@@@K@M@@@@L@N@@@@M@O@@@@N@P@@t@O6@Q@@@O0@R@@@N@S@@d@R _n_u_l_l_@T@@@R _n_u_l_l_@U@@@M@V@@d@UY@W@@@Ui@X@@@L@Y@@@@X@Z@@@@Y@[@@t@Z3@\@@K@Z@]@@@\1@^@@@Y@_@@d@^ _n_u_l_l_@`@@@^ _n_u_l_l_@a@@@X@b@@d@aX@c@@@ai@d *)L)L&&&&&&&&&& & & & & &&&@e*@UWxlhU ww-plot of the data79@f<@g:@W1@h</@i<@j0@ Normal Helvetica @k@B@U?q@l@@ p@m@@@l@n@@@@m@o@@d@n intercept@p@@p@n@q@@ @p@r@@d@qX@s@@@qY@t@@@m@u@@+@@tSerial_DisplayNodeX@v@@@t@w*@Uzzo  U U-@nintercept(X,Y) and slope (X,Y) calculate the intercept and slope of a least-square fit to the vectors X and Y 7n@x<@y8@wk Helvetica0,0,255@z<@{8@w@x@|< @}8@wk Helvetica0,0,255@z@~AB< AC8A=A@ABA@96AD<6AE:@W1AF</6AG<6AH0@ Normal Helvetica AI*@U -i=279AJ<AK:@W1AL</AM<AN0@ Normal Helvetica AO*@U  -i=079AP<AQ:@W1AR</AS<AT0@ Normal Helvetica AU*@U6ZL6k ]-@Suppose we only want to fit the data between X=2 and 5 Our problem intercept and slope use all the data in the vectors any unassigned data points are set to zero So we need to define new vectors containing only the last four data points.7`E AV