Quiz.

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Dik : f(x) = 5x – 7

f(3) =….
f(-5) = ….

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Quiz.

Penjelasan dengan langkah-langkah:

f(x) = 5x - 7

f(3) = 5(3) - 7

3f = 15 - 7

3f = 8

 - 5f = - 25 - 7

 - 5f = - 32

Fungsi

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f(x) = 5x – 7

>> f(3) = 5(3) – 7

f(3) = 15 – 7

f(3) = 8

>> f(-5) = 5(-5) – 7

f(-5) = -25 – 7

f(-5) = 32