diketahui fungsi f: x--> 1/2(x+3). jika f(a)=4, nilai a adalah...
Matematika
putra2814
Pertanyaan
diketahui fungsi f: x--> 1/2(x+3). jika f(a)=4, nilai a adalah...
2 Jawaban
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1. Jawaban Anonyme
jika gini (1/2)(x + 3)
(1/2)(a + 3) = 4
a + 3 = 8
a = 5 -
2. Jawaban EdiHeaven
f(x) = ½(x+3)
f(a) = ½(a+3)
4=½(a+3)
(a+3)=4 x 2
a+3=8
a=8-3
a=5