document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1110743>Question 1110743</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question: Graph the lines x=0, x=6, y=0 and y=x+4. Find the area of the quadrilateral formed.\r<BR>\n" );
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document.write( "I'm clear on graphing x=0, x=6 and y=0. I'm also clear on how to find the area.\r<BR>\n" );
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document.write( "For whatever reason I'm having trouble understanding the graphing of y=x+4. I know that y=x+4 is a diagonal that goes though (0, 4) & (6, 10) - (i have the the graph that has been solved by another party, without explanation). Please explain how I get the diagonal that passes though points (0, 4) & (6, 10)?\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #725759 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=725759\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=\"black\" face=\"times\" size=\"3\"><BR>\n" );
document.write( "The letters x and y are simply placeholders for numbers. When we say x+4 we mean \"some number plus 4\". So for example, we can replace x with 0 to go from x+4 to 0+4.\r<BR>\n" );
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document.write( "If we do so, then we will have...<BR>\n" );
document.write( "y = x+4<BR>\n" );
document.write( "y = 0+4<BR>\n" );
document.write( "y = 4<BR>\n" );
document.write( "So x = 0 pairs up with y = 4. They form the ordered pair (0,4)<BR>\n" );
document.write( "The term \"point\" is a shorter term for \"ordered pair\"<BR>\n" );
document.write( "The first value is the x value; the second coordinate is the y value<BR>\n" );
document.write( "All ordered pairs or points are of the form (x,y)\r<BR>\n" );
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document.write( "If we replaced x with 6, then we would have y equal to...<BR>\n" );
document.write( "y = x+4<BR>\n" );
document.write( "y = 6+4<BR>\n" );
document.write( "y = 10<BR>\n" );
document.write( "So another ordered pair is (6,10)\r<BR>\n" );
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document.write( "Now plot the two points (0,4) and (6,10). <BR>\n" );
document.write( "They are marked as point A and point B respectively<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"https://i.imgur.com/zmUnvZy.png\"><BR>\n" );
document.write( "The point (0,4) is the y intercept as it is on the y axis. We get to this point by moving 4 units up from the origin<BR>\n" );
document.write( "The point (6,10) is located by starting at the origin, then moving 6 units to the right and finally 10 units up.\r<BR>\n" );
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document.write( "Then draw a straight line through those two points. This line extends infinitely in both directions<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"https://i.imgur.com/4MxN4Ui.png\"><BR>\n" );
document.write( "Notes:<BR>\n" );
document.write( "The slope of y = x+4 is 1 because y = x+4 is the same as y = 1x+4. It is in the form y = mx+b where m is the slope<BR>\n" );
document.write( "The y intercept is b = 4 which is where the red graph crosses the vertical y axis.<BR>\n" );
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