f(c)=Ax+b f(3)=10 f(-1)=2 f(4)+f(-2)=...

Materi : Fungsi

f(x) = ax + b => seharusnya !

f(3) = a(3) + b
10 = 3a + b

f(-1) = a(-1) + b
2 = -a + b

3a + b = 10
-a + b = 2
◇◇◇◇◇◇◇◇◇ [-]
4a = 8
a = 2

3a + b = 10
3(2) + b = 10
b = 10 - 6
b = 4

f(x) = ax + b
f(x) = 2x + 4

f(4) = 2(4) + 4
f(4) = 8 + 4
f(4) = 12

f(-2) = 2(-2) + 4
f(-2) = -4 + 4
f(-2) = 0

f(4) + f(-2)
》12 + 0
》12

Semoga membantu ^_^