When rewriting y = 2x + 1 in function notation, what do you replace with f(x)?

You replace y with f(x)

Step-by-step explanation:

- Function is a relation between two sets of numbers, with every element

 in the first set has only one corresponding element in the second set

- The first set is called the domain of the function (input)

- The second set is called the range of the function (output)

- If the first set is set X and the second set is set of Y, then each value

 of x has only one value of y and x is the input and y is the output

- Function notation is the way to write a function f(x) = y, where f(x)

 represents the values of y

∵ y = 2x + 1

∵ f(x) = y

- Replace y by f(x)

∴ f(x) = 2x + 1

* You replace y with f(x)

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step-by-step explanation: