Question

Fungsi g di definisikan dengan rumus g(x)=qx + r. nilai g (2) = -7 dan g (-5) = 7, nilai g (4) adalah

Answer 1

G(2) = 2q + r = -7
g(-5) = -5q + r = 7
terus dikurang, hasilnya 7q = -14
q = -2
2(-2) + r = =7
-4 + r = -7
r = -3
g(4) = qx +r
-2x - 3

Answer 2

Persamaan 1
g 2 + r = -7
g -5 + r = 7
kurangi

g7 = -14
g= -14/7 = -2
jadi g = -2 masukan ke
(g) 2 + r = -7
-2(2)+ r = -7
r = -7 + 4 = -3
ditanya nilai g(4)=gx+r = -2x-3
g= -2 (4) - 3 =  -11