Suatu fungsi g(x)=p x + q.jika g (-4)=9 dan g (-1) =3,maka tentukan :

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a.nilai p dan q
b.bentuk fungsi g

Suatu fungsi g(x)=p x + q.jika g (-4)=9 dan g (-1) =3,maka tentukan :

Jawaban Terkonfirmasi

G(x)=p x + q
g(-1)=3
-p+q =3

p= frac{9-3}{-4-(-1)} = frac{6}{-3}=-2
-p+q=3
-(-2)+q=3
2+q=3
q=3-2
q=1

g(x) = -2x+1

-4p+q = 9
-p+q = 3
—————— –
-3p = 6
p = 6/-3
p = -2

-4p+q = 9
-4.-2+q = 9
8+q = 9
q = 9-8
q = 1

jadi, p = -2 dan q = 1