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Given that the point (9,7) is on the graph of y=f(x), there is one point that must be on the graph of 2y  = 2f(x). What is the sum of coordinates of that point?

 Jun 20, 2022
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2y = 2f(x) is just y = f(x), so the point is (9, 7).

 Jun 20, 2022

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