Question

Kuis(+50)
[tex] \: [/tex]
Jika:
f(x) = 3x - 2

f(a) = 4
f(b) = 10

Tentukan nilai a + b.
....


yey:"
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Answer 1

f(x) = 3x - 2

f(a) = 3a - 2

4 = 3a - 2

-3a = -2 - 4

-3a = -6

a = -6 ÷ (-3)

a = 2

f(b) = 3b - 2

10 = 3b - 2

-3b = -2 - 10

-3b = -12

b = -12 ÷ (-3)

b = 4

Nilai a + b

a + b = 2 + 4

a + b = 6

Answer 2

Penjelasan dengan langkah-langkah:

f(x) = 3x - 2

f(a) = 3a - 2 = 4

3a - 2 = 4

3a = 4 - 2

3a = 6

a = 6/3

a = 2

f(b) = 3b - 2 = 10

3b - 2 = 10

3b = 10 + 2

3b = 12

b = 12/3

b = 4

nilai a + b

= a + b

= 2 + 4

= 6