document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195900>Question 1195900</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Each set of ordered pairs represents a function.  Write a rule that represents the function. \r<BR>\n" );
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document.write( "1. (2,10), (4,20), (5,25), (7,35), (9,45)<BR>\n" );
document.write( "2. (2,5), (4,9), (5,11), (7,15), (10,21)\r<BR>\n" );
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document.write( "The answer I got the the first set of ordered pairs was f(x) = 5x, and for the second pair of ordered pairs, the answer I got was f(x) = 2x+1. Are my answers correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #828517 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=828517\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "I'll show you how to verify one of the points for each function.\r<BR>\n" );
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document.write( "Problem 1<BR>\n" );
document.write( "For the point (2,10), it means x = 2 leads to y = f(x) = 10.\r<BR>\n" );
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document.write( "So,<BR>\n" );
document.write( "y = 5x<BR>\n" );
document.write( "y = 5*2<BR>\n" );
document.write( "y = 10<BR>\n" );
document.write( "which confirms (2,10) is on the equation y = 5x<BR>\n" );
document.write( "I'll let you check the other points for problem 1.\r<BR>\n" );
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document.write( "Problem 2\r<BR>\n" );
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document.write( "Same idea as the previous problem<BR>\n" );
document.write( "Let's see if x = 2 leads to y = 5<BR>\n" );
document.write( "y = 2x+1<BR>\n" );
document.write( "y = 2*2+1<BR>\n" );
document.write( "y = 4+1<BR>\n" );
document.write( "y = 5<BR>\n" );
document.write( "Sure enough it does, so we have confirmed that (2,5) is on the function y = 2x+1<BR>\n" );
document.write( "I'll let you check the other points.\r<BR>\n" );
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document.write( "You can use graphing tools like Desmos or GeoGebra to visually confirm the answers quickly. <BR>\n" );
document.write( "However, I recommend getting practice doing this by hand before you turn to a calculator.<BR>\n" );
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