Question

How do you write the total cost of oranges in function notation, if each orange cost $3?

Answer 1

`f(x)=3x`

Explanation:

One orange costs $`3` hence if `x` is the number of oranges then the total cost `f(x)` of `x` number of oranges

`f(x)=3x`

Where, `f(x)` is in $ & `x` is number of oranges