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Answer:
y = 2x or y = x + 2
Step-by-step explanation:
A graph coordinate means (x, y).
Now, we have a coordinate as (2, 4).
This means that when x = 2, y = 4.
Now, since y is twice the value of x, one possible rule could be that;
y = 2x
Since 4 = 2 × 2
Similarly, y is greater than x by 2 units.
Thus, another rule could be;
y = x + 2