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## #1 2013-01-24 06:22:02

skylor b
Guest

### domain and range

domain of a figure is [0,2]
range is [0,1]

How do I find the domain for f(x)+7
f(x)-7
3f(x)
-f(x)
f(x+1)
f(x-1)
f(-x)
-f(x+1)+1

## #2 2013-01-24 07:27:43

bob bundy
Moderator

Offline

### Re: domain and range

Did you mean the range ?

Bob

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

## #3 2013-01-24 07:33:29

skylor b
Guest

### Re: domain and range

domain and range sorry and a graph.

## #4 2013-01-24 07:37:12

bob bundy
Moderator

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### Re: domain and range

eg.  f(x) + 7

put x = 0 and x = 2  to work out the new range.

Not sure what you mean by graph.

Bob

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

## #5 2013-01-24 07:41:09

anonimnystefy
Real Member

Offline

### Re: domain and range

Hi Bob

How do you know which values f(x) takes at x=0 and x=0 when it os nowhere explicitly given?

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

## #6 2013-01-24 07:44:23

bob bundy
Moderator

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### Re: domain and range

Good point.  I'm assuming f is linear.

Bob

You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

## #7 2013-01-24 07:45:23

anonimnystefy
Real Member

Offline

### Re: domain and range

It could be a polynomial of degree 100 for all you know...

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment