nomor 11 , kalo bisa pake caranya sekalian ya ...

ada gambar yg lebih jelas lg gk??

dik :
f (x) = 7x + p
f (2) = 10

dit :
f (3) + f(-2) = ... ?

jwb :
f (2) = 10
7x + p = 10
7(2) + p = 10
p = 10 -14
p = -4

f (3) = 7 (3) - 4 = 21 - 4 = 17
f (-2) = 7 (-2) - 4 = -14 - 4 = -18

f (3) + f (-2) = 17 + (-18) = -1