document.write( "Question 164127: I need help to solve this please! Much appreciated! Thanks\r
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document.write( "If f (4)= 0 and f(6) =6, which of the following could represent f(x) and why?\r
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document.write( "A- x+2
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document.write( "B- x-4
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document.write( "C- 3x-12\r
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document.write( "Thanks \n" );
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Algebra.Com's Answer #120914 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! If f(4) = 0 and f(6) = 6, does: \n" ); document.write( "A) f(x) = x+2 Substitute x = 4 to see. \n" ); document.write( "f(4) = 4+2 = 6 Nope! \n" ); document.write( "B) f(x) = x-4 Substitute x = 4 to see. \n" ); document.write( "f(4) = 4-4 = 0 Possibly! try: \n" ); document.write( "f(6) = 6-4 = 2 Nope! \n" ); document.write( "C) f(x) = 3x-12 Substitute x = 4 to see. \n" ); document.write( "f(4) = 3(4)-12 \n" ); document.write( "f(4) = 12-12 = 0 Possibly! try: \n" ); document.write( "f(6) = 3(6)-12 \n" ); document.write( "f(6) = 18-12 = 6 Bingo! \n" ); document.write( "The answer is C) f(x) = 3x-12 \n" ); document.write( " |