Question

TOLONG BANTU MENJAWAB SOAL INI
PAKAI CARA

Answer 1

1. rumus: px + q
nilai p dan q =
f(1)= p(1)+q = 3 | =p+q =3
f(3)=p(3)+q =13. | =3p+q= 13
————— -
-2p = -10
p=-10 /-2 = 5
jika p=5 maka q
=5(1)+q=3
=5+q=3
=q =3-5
q = -2.
rumus fungsi = f(x)=5x-2

nilai f(-5) = -27


2.rumus ax+b
g(5)=5a+b= -11
g(-3)=-3a+b=13
—————— -
8a=-24
a=-24 /8
a= -3
b
-15+b=-11
b=-11+15
b =4
rumus :g(x)= -3x+4
x(4)= -8