Question

Jika f(1)= 3 dan (-3) =11, nilai 2p+q

Answer 1

F(1) = 3
p + q = 3

f(-3) = 11
-3p + q = 11

eliminasi
p + q = 3
-3p + q = 11
--------------- -
4p = -8
p = -2

2p + q
= p + p + q
= p + (p + q)
= -2 + 3
= 1

semoga benar yaa... ;-)

Answer 2

F(1) = 3 --> p + q = 3
f(-3) = 11 --> -3p + q =11

p + q = 3
-3p+q=11
------------- -
4p = -8
p=-2

p + q = 3
-2 + q = 3
q = 5

2p+q = 2(-2) + 5
= -4 + 5
= 1