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Below is the solution:

y = 3x
y = 3*-2 = -6

f (-2, y) lies on the graph of y = 3x, then y = -6

Answer:  The required value of y is - 6.

Step-by-step explanation:  Given that (-2, y) lies on the graph of the following line :

[tex]y=3x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

We are to find the value of y.

Sine the point (-2, y) lies on line (i), so the equation (i) must be satisfied by the point (-2, y).

Substituting the point (-2, y) in equation (i), we get

[tex]y=3x\\\\\Rightarrow y=3\times(-2)\\\\\Rightarrow y=-6.[/tex]

Thus, the required value of y is - 6.

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