Answer:
I'm sorry if this is wrong but:
from 2 and 3 you multiply by 4, from 8 and 12 you divide by 8, 10 and 15 you add 9??
I'm not sure about this at all but I took a guess!
Explanation:
Are there any answer choices?
Answer: The constant of proportionality is 1.5
The equation for constant of proportionality is y=KX. the K stands for the constant of proportionality and since the constant proportionality is 1.5 you will take 1.5 * x and for example x is 2 so you do 1.5 * 2 and you get 3 and 3 is your y. If you plug in the equation you're saying 3 equals 1.5 * 2 which is right.
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