What is the value of $a$?

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The table shows two values of

x

and their corresponding values of

y

. The graph of the linear equation passes through the point

(\frac{1}{3}, a)

. (Dựa vào bảng:

(- 13, - 28)

và

(6, 48)

What is the value of

a

25.333

76/3

25.33