document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=668648>Question 668648</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which ordered pair is not a solution of f ( x ) = 2 x + 9?\r<BR>\n" );
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document.write( "(0, 9)<BR>\n" );
document.write( "(7, 23)<BR>\n" );
document.write( "(3, 14)<BR>\n" );
document.write( "(2, 13) </SPAN>\n" );
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document.write( "f(x) = 2x + 9<BR>\n" );
document.write( "...<BR>\n" );
document.write( "Substitute each x value from the pair and confirm which y is not given.<BR>\n" );
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document.write( "2(0) + 9 = 9:  (0,9) Good<BR>\n" );
document.write( "2(7) + 9 = 14+9 = 23: (7,23) Good<BR>\n" );
document.write( "2(3) + 9 = 6+9=15: (3,15)  Oops, (3,14) is not an ordered pair!<BR>\n" );
document.write( "2(2) + 9 = 4+9=13: (2,13) Good<BR>\n" );
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