Why might function notation be important?

Question

I know
F(x) = function notation.

but why is it important?

Answer 1

F(x) is the function notation.

It is important because it is saying this...
What do you get for the answer of function if you put (x) in it.

for example; f(x) = 4x + 3

what do you get for the function if you put x in for the x.

Then you can have any real number for your domain and can solve it.


If you have a function, then you know that there is only one outcome for every input. So you can use it for business: if 8 people bought the item when it was $10, then how many people will buy it when the price is $7 or $11. They can assume exponential growth in consumers or linear growth.

Or if it cost x to make y cars with z down payment, how much profit can be made by making a cars?...etc...

Answer 2

The truth of the matter is that there is no reason why THIS should be the way function notation happens. There are two things that are important:

(1) People understand the notation
(2) All of the relevant information is present

I could have written the function f or f*x* as long as things are clear to whoever is reading it. You can think of a "function" as a machine that gets a certain input and then, once you put in the input, it spits out an output. So the "x" in f(x) represents the input. If you had put f(x,y,z) it means that the machine expects 3 inputs. So as long as I understand what machine I'm using ("f") and what I'm supposed to put into the machine ("x"), I know the output will be what I intended (and this is what function notation allows you to do).

On a more concrete note, this form of function notation is now widely used in computer programming.

Answer 3

function notation might be important for things like factory work where u work out how much products you make and the cost or profit of the function
it can be used to work out the maximum profit u can make
which makes it important

for f(x)
u reeplace whatever x is in the formula with the function notation
for example f(x) = 5
then u replace whatever has x in the formula with 5

Answer 4

F(x) = function notation

Answer 5

I asked my teacher the same question too. "That why do we need to know this all stuff, I am 100% sure I'm not gonna use this in my real life. What's the connection of this odd stuff with the real life??????"

And my teacher's answer was that lot of high-tech companies who employs you require you having math skills because they use most of Mathematics to solve the stuff........
And students who takes Physics related jobs also have to know this all stuff. they use them in Companies.....