Question

Find the domain of each function.

f(x) = -5x+4

Answer 1

all real numbers

Answer 2

d= all real numbers

Answer 3

Domain is R

Answer 4

{xl x e r}?

Answer 5

domain is r it should be R(R denotes the set of all real numbers)

Answer 6

{X: whaer x

Answer 7

uh i want a complete answer lol..

Answer 8

Domain is simple here..

For every real value of x you will get f(x) a defined value..

Meaning f(x) is defined for every real value of x..

Real value means value taken from the set of Real Numbers..

So here Domain is all reals..

you can show it by:

\[Domain : \mathbb{R}\]

Answer 9

my teacher wants me to write it something like this {X l X E R} is this correct?

Answer 10

Yes, this is also correct..

Answer 11

\[Domain : \{x : x \in \mathbb{R}\}\]

Answer 12

he's talking about the set notation, and then the graph

Answer 13

something like that @waterineyes

Answer 14

No:

he asked to find the domain and write it in particular set notation..

What set notation is this @panlac01 ?/

I always have confusion in what is roaster form and what is set builder form..

Can you tell??

Answer 15

http://www.purplemath.com/modules/setnotn.htm
something students here in the US learn under set theory.

Answer 16

how to solve this one? f(x)=x/x^2+1

Answer 17

is this correct? {xlx\[\neq\]0}

Answer 18

you must meet a condition for a function @qqstory
that is denominator cannot be zero. you can solve that by x^2+1=0

Answer 19

and for numerator, it cannot have a square root

Answer 20

o_O so am i right? {xl x \[\neq\] 0}