Answer:

Explanation:
The function f(x) is the another way of representing the y-values in the function
i.e

Then y-axis be labeled with f(x)
Also; the ordered pair is written as: (x, f(x)) instead of (x, y)
Given the equation:

replace y = f(x)
then;

therefore, the equation y=2x+3 using function notation is,
