Fungsi f dinyatakan dengan rumus f (x) = ax + b. Jika f (2) = 11 dan f (-5) =-10, nilai dari (a + b) pangkat 2 adalah

f(x) = ax + b
f(2) = 11
f(-5) = -10

f(2) = 2a + b = 11
f(-5) = -5a + b = -10
___________ _
7a = 21
a = 21/7 = 3

2a + b = 11
2(3) + b = 11
6 + b = 11
b = 11-6
= 5
(a + b )^2 = (3 + 5)^2
= 9 + 25
=34

Maaf kalo salah hehee^-^