" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 4.1 + 5 = 9
dan f(-1) = 4.(-1) + 5 = -4 + 5 = 1
9=a(1)+b
9=a+b
f(-1)=1
1=a(-1)+b
1=-a+b
Eliminasi:
9=a+b
1=-a+b
Kurangi menjadi
8=2a
a=4
9=a+b
9=4+b
b=5
Jadi f(x)=4x+5
Jawab D