Nabilah B

22 Februari 2024 15:42

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Nabilah B

22 Februari 2024 15:42

Pertanyaan

Jika f(x) = 2 x+1 - 3 Maka tentukan nilai f(x) untuk nilai x=0,1,2,3,4

Jika f(x) = 2x+1 - 3 

Maka tentukan nilai f(x) untuk nilai x=0,1,2,3,4

 

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Sumber W

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23 Februari 2024 00:11

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<p>f(x) = 2<sup>x+1</sup> - 3&nbsp;</p><p>x = 0 --&gt; f(0) = 2<sup>0+1</sup> - 3&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2 - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= -1</p><p>x = 1 --&gt; f(1) = 2<sup>1+1</sup> - 3&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2<sup>2</sup> - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 4 - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 1</p><p>x = 2 --&gt; f(2) = 2<sup>2+1</sup> - 3&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2<sup>3</sup> - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 8 - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 5</p><p>x = 3 --&gt; f(3) = 2<sup>3+1</sup> - 3&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2<sup>4</sup> - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 16 - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 13</p><p>x = 4 --&gt; f(4) = 2<sup>4+1</sup> - 3&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 2<sup>5</sup> - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 32 - 3</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 29</p><p>Jadi nilai f(x) adalah {-1, 1, 5, 13, 29}</p>

f(x) = 2x+1 - 3 

x = 0 --> f(0) = 20+1 - 3 

                         = 2 - 3

                         = -1

x = 1 --> f(1) = 21+1 - 3 

                         = 22 - 3

                        = 4 - 3

                         = 1

x = 2 --> f(2) = 22+1 - 3 

                         = 23 - 3

                        = 8 - 3

                         = 5

x = 3 --> f(3) = 23+1 - 3 

                         = 24 - 3

                        = 16 - 3

                         = 13

x = 4 --> f(4) = 24+1 - 3 

                         = 25 - 3

                        = 32 - 3

                         = 29

Jadi nilai f(x) adalah {-1, 1, 5, 13, 29}


Nabilah B

29 Februari 2024 10:36

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