Shintia I

21 November 2023 04:41

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Shintia I

21 November 2023 04:41

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Kak ini gimana caranya yah kak!!!mohon dijawab secepatnya

Kak ini gimana caranya yah kak!!!mohon dijawab secepatnya

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Community

11 Desember 2023 05:07

<p>Yuks kita bahas .....</p><p>&nbsp;</p><p>1. f(x) = 3x + 5</p><p>a. &nbsp; &nbsp;x &nbsp; &nbsp; &nbsp;..... &nbsp; &nbsp;-3 &nbsp; &nbsp; -2 &nbsp; &nbsp; -1 &nbsp; &nbsp; 0 &nbsp; &nbsp; 1 &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp; &nbsp;3 &nbsp; &nbsp; ......</p><p>&nbsp; &nbsp; &nbsp; f(x) &nbsp; ..... &nbsp; &nbsp;<strong>-4 &nbsp; &nbsp; -1 &nbsp; &nbsp; &nbsp;2&nbsp;</strong> &nbsp; &nbsp; 5 &nbsp; &nbsp; 8 &nbsp; &nbsp;<strong>11 &nbsp; 14</strong> &nbsp; ......</p><p>&nbsp;</p><p>b. Selisih = -1 -(-4) = -1 + 4 = 3. Selisihnya adalah 3. 3 adalah koefisien dari variabel x, artinya selisih setiap perubahannya adalah 3.</p><p>&nbsp;</p><p>2. h(x) = ax + b</p><p>&nbsp; &nbsp; &nbsp;h(0) = -2 &nbsp;--&gt; b = -2 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(1)</p><p>&nbsp; &nbsp; &nbsp;h(1) = &nbsp;3 --&gt; a + b = 3 &nbsp; &nbsp; &nbsp; &nbsp;(2)</p><p>&nbsp; &nbsp; &nbsp;Substitusikan b = -2 ke persamaan (2)</p><p>&nbsp; &nbsp; &nbsp;a + b = 3</p><p>&nbsp; &nbsp; &nbsp;a - 2 = 3</p><p>&nbsp; &nbsp; &nbsp;a = 3 + 2 = 5</p><p>&nbsp; &nbsp; &nbsp;Rumus fungsinya</p><p>&nbsp; &nbsp; &nbsp;h(x) = 5x - 2</p><p>&nbsp; &nbsp; &nbsp;tabelnya menjadi :</p><p>&nbsp; &nbsp; &nbsp; x &nbsp; &nbsp; &nbsp; ..... &nbsp; &nbsp;-3 &nbsp; &nbsp; -2 &nbsp; &nbsp; -1 &nbsp; &nbsp; 0 &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp; 3 &nbsp; &nbsp; ......</p><p>&nbsp; &nbsp; &nbsp; f(x) &nbsp; ..... &nbsp;&nbsp;<strong>-22 &nbsp; -12 &nbsp; -7</strong> &nbsp; &nbsp;-2 &nbsp; &nbsp; 3 &nbsp; &nbsp;<strong>8 &nbsp; &nbsp; 12</strong> &nbsp; ...... &nbsp; &nbsp;</p><p>&nbsp; &nbsp;&nbsp;</p>

Yuks kita bahas .....

 

1. f(x) = 3x + 5

a.    x      .....    -3     -2     -1     0     1      2      3     ......

      f(x)   .....    -4     -1      2      5     8    11   14   ......

 

b. Selisih = -1 -(-4) = -1 + 4 = 3. Selisihnya adalah 3. 3 adalah koefisien dari variabel x, artinya selisih setiap perubahannya adalah 3.

 

2. h(x) = ax + b

     h(0) = -2  --> b = -2            (1)

     h(1) =  3 --> a + b = 3        (2)

     Substitusikan b = -2 ke persamaan (2)

     a + b = 3

     a - 2 = 3

     a = 3 + 2 = 5

     Rumus fungsinya

     h(x) = 5x - 2

     tabelnya menjadi :

      x       .....    -3     -2     -1     0      1      2     3     ......

      f(x)   .....   -22   -12   -7    -2     3    8     12   ......    

    


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