1 soal 50 POINT !beserta caranya !​

F(x) = ax + b

f(-3) = -15
f(3) = 9

f(-2) + f(2) = ?

f(-3) = a(-3) + b
-15 = -3a + b

f(3) = a(3) + b
9 = 3a + b

-3a + b = -15
3a + b = 9
——————— –
-6a = -24
a = -24/(-6)
a = 4

3a + b = 9
3(4) + b = 9
12 + b = 9
b = 9 – 12
b = -3

f(x) = ax + b
f(-2) = 4(-2) + (-3) = -8 – 3 = -11
f(2) = 4(2) + (-3) = 8 – 3 = 5

f(-2) + f(2) = -11 + 5 = -6

Jawabannya A