document.write( "Question 82189: Hi and thank you in advanced for your help. I'm in a pre-algebra class and I missed class yesterday and I'm supposed to finish 2 work sheets about functions. My pre-algebra teacher gave me the definition but I don't fully understand it. Could you please explain it to me in a way that I can understand? Also in one of the work sheets it says to \"find four solutions to each equation\" and then it gives me this:
\n" ); document.write( "1. y = x - 5
\n" ); document.write( "What am I supposed to do with it? \n" ); document.write( "

Algebra.Com's Answer #58881 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!
Hi and thank you in advanced for your help. I'm in a pre-algebra class and I missed class yesterday and I'm supposed to finish 2 work sheets about functions. My pre-algebra teacher gave me the definition but I don't fully understand it. Could you please explain it to me in a way that I can understand? Also in one of the work sheets it says to \"find four solutions to each equation\" and then it gives me this:
\n" ); document.write( "1. y = x - 5
\n" ); document.write( "What am I supposed to do with it?
\n" ); document.write( "

\r\n" );
document.write( "At random just pick any number you like for one of the letters,\r\n" );
document.write( "plug it into the equation, and solve for the other letter. \r\n" );
document.write( "Then write the ordered pair with the coordinate you picked and\r\n" );
document.write( "the one youi got.\r\n" );
document.write( "\r\n" );
document.write( "For instance, suppose I pick the number 6 for x, Then I substitute\r\n" );
document.write( "6 for x, like this\r\n" );
document.write( "   \r\n" );
document.write( "   y = x - 5\r\n" );
document.write( "   y = 6 - 5\r\n" );
document.write( "   y = 1\r\n" );
document.write( "\r\n" );
document.write( "So I put the number I picked first, since x comes first,\r\n" );
document.write( "in an ordered pair, and the number I got for y second,\r\n" );
document.write( "since y comed after x.  So one solution is (6, 1).\r\n" );
document.write( "\r\n" );
document.write( "suppose I pick the number -3 for y, Then I substitute\r\n" );
document.write( "-3 for y, like this\r\n" );
document.write( "   \r\n" );
document.write( "   y = x - 5\r\n" );
document.write( "  -3 = x - 5\r\n" );
document.write( "   2 = x\r\n" );
document.write( "\r\n" );
document.write( "So I put the number I GOT first, since x comes first,\r\n" );
document.write( "in an ordered pair, and the number I picked for y second,\r\n" );
document.write( "since y comed after x.  So one solution is (2, -3).\r\n" );
document.write( " \r\n" );
document.write( "You can find as many solutions as you want by this method.\r\n" );
document.write( "It doesn't matter what number you pick, and it doesn't\r\n" );
document.write( "matter which letter you substitute it for.\r\n" );
document.write( "\r\n" );
document.write( "Edwin

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