G(x)=ax + b,jika G( -2 )= -4 danG(-6) = 12,maka bentuk fungsi G adalah: A.G( x) = -4x - 12 B.G(x) = - 4x + 12 C.G(x) = -4x - 6 D.G(x) = -2x + 6
Matematika
ryanaurerro78
Pertanyaan
G(x)=ax + b,jika G( -2 )= -4 danG(-6) = 12,maka bentuk fungsi G adalah:
A.G( x) = -4x - 12
B.G(x) = - 4x + 12
C.G(x) = -4x - 6
D.G(x) = -2x + 6
A.G( x) = -4x - 12
B.G(x) = - 4x + 12
C.G(x) = -4x - 6
D.G(x) = -2x + 6
2 Jawaban
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1. Jawaban Nik001
g(x) = ax + b
g(-2) = -2a + b = -4
g(-6) = -6a + b = 12
---------------------------- -
4a = -16
a = -16/4
a = -4
-2a + b = -4
-2(-4) + b = -4
8 + b = -4
b = -4 - 8
b = -12
Rumus fungsi
g(x) = ax + b
g(x) = -4x + (-12)
g(x) = -4x - 12 -
2. Jawaban danisetiawan3
g(x) = ax+b
g(-2) = -4
g(-6)=12
a(-2)+ b = -4
a(-6)+ b = 12
lakukan eliminsi
-2a+b = -4
-6a+b=12
---------------- -
4a = -16
a = -4
subtitusikan
-2a+b =-4
-2(-4)+b =-4
8 + b = -4
b= -4 -8
b = -12
f(x) = ax+b
f(x)= -4x - 12