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Given that the point $(4,7)$ is on the graph of $y=3f\left(2x\right)+1$, there is one point that must be on the graph of $y=f(x)$. What is the sum of coordinates of that point?

 Mar 5, 2021
 #1
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y = 3 (f(2x) + 1    

use the point given

7 = 3 f(2x) + 1

6 = 3 f(2x)

2 = f(2x)

2 = f(8)          so the point would be     8,2   I believe

 Mar 5, 2021

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