" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
f(2) = a(2) +b = 12
= 2a +b = 12
f(5) = a(5) +b = 21
= 5a +b = 21
2a +b = 12
5a +b = 21 -
-3a = -9
a = -9 : -3
a = 3
2a +b = 12
2(3) +b = 12
6 +b = 12
b = 12 -6
b = 6
Jadi, nilai a dan b adalah 3 dan 6.
b. f(x) = 3x +6
f(8) = 3(8) +6
= 24 +6
= 30
Itu jawabannya.