Question

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pake cara ye kak ​

Answer 1

Jawab:

Penjelasan dengan langkah-langkah:

Answer 2

Nomor 3

Jawaban;

E. Range = {8, 9, 10, 11}

Penyelesaian:

A = {3, 4, 5, 6} → Domain

B = {7, 8, 9, 10, 11, 12} → Kodomain

Range = Kodomain yang berpasangan dengan domain = {8, 9, 10, 11}

Nomor 4

Jawaban:

B. {-15, -8, -3, 0}

Penyelesaian:

f(x) = -x² + 1

x = {1, 2, 3, 4}

• f(1) = -1² + 1 = -1 + 1 = 0
• f(2) = -2² + 1 = -4 + 1 = -3
• f(3) = -3² + 1 = -9 + 1 = -8
• f(4) = -4² + 1 = -16 + 1 = -15

Daerah hasil = {-15, -8, -3, 0}

Nomor 5

Jawaban:

D. 8

Penyelesaian:

f(x) → 4 - 2x, x < 2

→ (x - 2)², x ≥ 2

f(-2) → x < 2, sehingga menggunakan f(x) = 4 - 2x

f(-2) = 4 - 2(-2)

= 4 + 4

= 8

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