f(x)=2x+6 g(x)=5x+7 fog(1)= ...? Tolong ya teman-teman,aku butuh bantuan kalian

Question

Matematika Diposting : 2017-09-20 Diupdate : 2018-10-22 ahlaaa

Pertanyaan

f(x)=2x+6
g(x)=5x+7
fog(1)= ...?

Tolong ya teman-teman,aku butuh bantuan kalian

Answer 1

f(x) = 2x + 6
g(x) = 5x + 7
(fog)(x) = 2(5x + 7) + 6
= 10x + 14 + 6
= 10x + 20
(fog) (1) = 10(1) + 20
= 30

Answer 2

Bab Fungsi Komposisi
Matematika SMA Kelas X

(fog) (1) = ?

g(x) = 5x + 7
g(1) = 5 . 1 + 7
= 12

f(x) = 2x + 6
f(12) = 2 . 12 + 6
= 24 + 6
= 30