If you knew that f(4)=8, then what (x,y) coordinate point must lie on the graph of y=f(x)?
Mathematics
AngryDog
Question
If you knew that f(4)=8, then what (x,y) coordinate point must lie on the graph of y=f(x)?
2 Answer

1. User Answers EllaWeiserman
I believe it would be (4, 8); because when x = 4, y = f(x) = 8. 
2. User Answers facundo3141592
If we know that f(4) = 8, then what (x, y) point must lie on the graph y = f(x)?.
The point is (4, 8)
For a given function y = f(x), all the points (x, y) on the graph are of the form:
(x, y) = (x, f(x))
So if we know that:
f(4) = 8
Then we know that the point:
(4, f(4)) = (4, 8)
Must lie on the graph of y = f(x)
Then the correct answer is (4, 8)
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