Fungsi f dirumuskan f (x) = px +q. Jika f (2) = 1 dan f (-2) = 13 ,maka rumus fungsi f (x) adalah

F(x) = px+q
F(2) = 2p+q = 1
F(-2) = -2p+q = 14

2p+q = 1
-2p + q = 14
4p = -13
P = -13/4

F(2) = 2(-13/4) + q = 1
-13/2 + q = 1
Q = 1+13/2
Q = 15/2

Maaf jika ada kesalahan :)