document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1201411>Question 1201411</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i have been looking for one fucking person who can tell me what the hell \"y\" is. i have went to khan academy. i went to microsoft mathsolver. i went to every corner of the earth to find what y means. and i cant find out what it means. y = mx + b<BR>\n" );
document.write( "i cant understand how to solve it if im missing a variable. is it the y value on the graph? is it the y variable? WHO KNOWS BECAUSE I DONT. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #835769 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3817)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=835769\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "The y is a variable. <BR>\n" );
document.write( "Specifically it's the output variable or dependent variable.<BR>\n" );
document.write( "It depends on what the input x would be.\r<BR>\n" );
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document.write( "Example:<BR>\n" );
document.write( "x = number of hours a person works<BR>\n" );
document.write( "y = total amount of money they have in their bank account\r<BR>\n" );
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document.write( "Let's say the person already has $20<BR>\n" );
document.write( "We'll also say the person has an hourly wage of $13 an hour.<BR>\n" );
document.write( "The equation would be: y = 13x+20\r<BR>\n" );
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document.write( "We can think of it like starting with 20, then adding on 13x to get 20+13x<BR>\n" );
document.write( "Then that flips to 13x+20<BR>\n" );
document.write( "Therefore, in total they have y = 13x+20 dollars after all is said and done.\r<BR>\n" );
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document.write( "Why is this useful? We can quickly figure out how much money they have in their bank account. <BR>\n" );
document.write( "All we need to know is how many hours they worked.<ul><li>If the person worked x = 2 hours, then they have y = 13x+20 = 13*2+20 = 26+20 = 46 dollars.</li><li>If the person worked x = 3 hours, then they have y = 13x+20 = 13*3+20 = 39+20 = 59 dollars.</li><li>If the person worked x = 4 hours, then they have y = 13x+20 = 13*4+20 = 52+20 = 72 dollars.</li></ul>And so on.\r<BR>\n" );
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document.write( "Each x and y pair can then be plotted as a point on a grid. Plot two points to draw a line through them. A graph like this is often useful in presentations to the boss (so they can see if the company is making money or not, as one example). Graphs are a great way to visually communicate something. Sometimes you don't even need to involve numbers with a graph. Graphs have many other applications.\r<BR>\n" );
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document.write( "There are other examples of real world applications of equations, so feel free to search those out.<BR>\n" );
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