tolong kerjain yang dibuletin saja dengan cara ya makasih

6) f(x)= x+1
f(2)= 2+1= 3
f(4)= 4+1=5
f(6)= 6+1=7
f(8)= 8+1=9
Jawaban: B

7) f(x)= 2x+5
f(x)= -3
f(x)= 2x+5= -3
2x = -3-5
2x = -8
x = -4. Jawaban: B

9) G(x)= ax+b

G(-2)= a(-2)+b= -4
G(-6)= a(-6)+b= 12

Eliminasi
••> -2a+b = -4
-6a+b = 12.
_________-
4a = -16
a= -4

••> -2a+b= -4
-2(-4)+b= -4
8+b= -4
b= -4-8= -12
Jawaban: B

10) f(x)= 2x-1
f(-1)= 2(-1)-1
= -2-1= -3
f(0)= 2(0)-1 = -1
f(1)= 2(1)-1
= 2-1= 1
f(2)= 2(2)-1
= 4-1= 3
Jawaban: A