Question

tolong dibantu

Answer 1

Verified answer

Kelas 8 Matematika
Bab Fungsi

g(x) = px + q

g(5) = 5p + q = 15
g(2) = 2p + q =  3
         ------------------- -
                 3p = 12
                   p = 12/3
                   p = 4

2p + q = 3
2 . 4 + q = 3
q = 3 - 8
q = -5

g(x) = 4x - 5

g(-3) = 4 . (-3) - 5
g(-3) = -12 - 5
g(-3) = -17

Answer 2

Verified answer

G(x) = px + q

g(5) = 5p + q
15 = 5p + q

g(2) = 2p + q
3 = 2p + q

5p + q = 15
2p + q = 3
_________-
3p = 12
p = 12 : 3 = 4

2p + q = 3
2 × 4 + q = 3
8 + q = 3
q = 3 - 8
q = -5

g(x) = px + q
g(x) = 4x - 5

g(-3) = 4 × (-3) - 5
= -12 - 5
= -17