Answer:
13.8
Explanation:
So you do 82.8-27.6÷6-2
Then 55.2/4 which equals 13.8
k = 13.8
y = kx where 'k' is the constant of proportionality
'k' can be found using the same method for finding slope
(82.8-27.6) ÷ (6-2)
55.2 / 4 = 13.8
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