fungsi f dirumuskan f(x) 4x+5 jika f(a) 17 dan f(2)=b tentukan a+b
Matematika
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Pertanyaan
fungsi f dirumuskan f(x) 4x+5 jika f(a) 17 dan f(2)=b tentukan a+b
2 Jawaban
-
1. Jawaban 4LL
Langsung aja y
f(a) = 4(a) + 5
17 = 4a + 5
4a = 17 - 5
4a = 12
a = 3
f(2) = 4(2) + 5
b = 8 + 5
b = 13
a + b → 3 + 13 = 16
semoga berguna +_+ -
2. Jawaban Ervinaanatasya
F(x) = 4x+5
A. F(17)
B. F(2)
A. F(17) = 4(17)+5
= 92+5 = 97
B. F(2) = 4(2)+5
= 8+5= 13
Maka a+b = 97+13 =110