f(2x) = 3-x maka f(2) = ?
Matematika
jcpatria
Pertanyaan
f(2x) = 3-x
maka f(2) = ?
maka f(2) = ?
1 Jawaban
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1. Jawaban cheezychiks
f(2x)=ax+b
3-x=a(2x)+b
3-x=2ax+b
-x=2ax
-1=2a
a=-1/2
b=3
f(x)= -1/2x+3
f(2)= -1+3 =2