Answer:
4/3
Step-by-step explanation:
Y=k.x "k" is my constant of proportionality.
From 1st reading.
K=y/x=6/(2/3)
K=9
When y=12
X=y/k
X=12/9=4/3
I would answer but there is no picture
-10
y=6x+8
y=6(-3)+8
y=-18+8
y=-10