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Daerah hasil fungsi  dengan daerah asal   adalah ....

Daerah hasil fungsi begin mathsize 14px style f open parentheses x close parentheses equals 5 minus 2 x squared end style dengan daerah asal begin mathsize 14px style open curly brackets 2 comma space 3 comma space 4 comma space 5 close curly brackets end style  adalah ....

  1. begin mathsize 14px style open curly brackets 9 comma space 23 comma space 37 comma space 55 close curly brackets end style 

  2. begin mathsize 14px style open curly brackets 21 comma space 41 comma space 69 comma space 105 close curly brackets end style 

  3. begin mathsize 14px style open curly brackets 1 comma space minus 1 comma space minus 3 comma space minus 5 close curly brackets end style 

  4. begin mathsize 14px style open curly brackets negative 3 comma space minus 13 comma space minus 27 comma space minus 45 close curly brackets end style 

Jawaban:

Perhatikan 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell f open parentheses x close parentheses end cell equals cell 5 minus 2 x squared end cell row cell f open parentheses 2 close parentheses end cell equals cell 5 minus 2 open parentheses 2 squared close parentheses end cell row cell f open parentheses 2 close parentheses end cell equals cell 5 minus 8 end cell row cell f open parentheses 2 close parentheses end cell equals cell negative 3 end cell row blank blank blank row cell f open parentheses 3 close parentheses end cell equals cell 5 minus 2 open parentheses 3 close parentheses squared end cell row cell f open parentheses 3 close parentheses end cell equals cell 5 minus 18 end cell row cell f open parentheses 3 close parentheses end cell equals cell negative 13 end cell row blank blank blank row cell f open parentheses 4 close parentheses end cell equals cell 5 minus 2 open parentheses 4 close parentheses squared end cell row cell f open parentheses 4 close parentheses end cell equals cell 5 minus 32 end cell row cell f open parentheses 4 close parentheses end cell equals cell negative 27 end cell row blank blank blank row cell f open parentheses 5 close parentheses end cell equals cell 5 minus 2 open parentheses 5 close parentheses squared end cell row cell f open parentheses 5 close parentheses end cell equals cell 5 minus 50 end cell row cell f open parentheses 5 close parentheses end cell equals cell negative 45 end cell row blank blank blank end table end style

Oleh karena itu, jawaban yang benar adalah D.

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