157 Answered Questions for the topic Domain

Domain

11/08/16

#### in the set of real numbers, what is the domain of f(x)=radical (x+5)?

the x+5 above is all under the radical sign

10/23/16

#### Finding Domain and Range of a Multivariable Function

for the following function find the domain D and range T and show that for every c ∈ T there exists x,y such that f(x,y) = c. Sketch the Domain.
The following is my own answer but I am unsure if...
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10/14/16

#### Composite Functions & Domains

f(x)= (x+3)/(x^2-4x-5) and (x)=(square root of(2-x))
Algebraically determine the domain of f(x)/g(x).
If you could provide a detailed explanation of how this would be done it would be...
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Domain Finding Domain

09/26/16

#### What's the domain of f(x)=3x+10/4x-20

What is the domain of that equation?

Domain

09/15/16

#### 1/(((5x^2)+(4x)-1)^(1/2))

I would like to know the domain for the function please. and just to clarify, the bottom is the square root of 5x squared plus 4x minus 1

#### Domain and Range & Function

(1,9) (-4,-8) (8, -3) (7,-2) (5, -5) (-4, 12)
State the domain and range of the following relation and determine if it is a fuction, explain why.

Domain

07/09/16

#### Domain of function

For the function √x / 1-x , why is the domain (1,positive infinity)?
I know you cant have 0 in the denominator but I thought you can count everything above 0 like 0.1,0.2 etc.

Domain

05/27/16

#### find the domain and range, is the relation a function

?(a) Find the domain and range of the relation. ?(b) Determine whether the relation is a function.?{(7?,85?), ?(5?,45?), ?(7?,35?), ?(3?,75?)}

Domain

02/25/16

#### domain.......

when determining the domain of a function that has a root as the numerator and a quadratic function as a denominator, do I need to solve just the latter one or both?
when determining the domain of...
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02/20/16

#### find domain of g(x)=log_5(6x+4)

The domain must be either greater than or less than x. Not sure how to set this up correctly.

02/11/16

#### Writing a function and giving a domain

A local bank has a debit card that gives a $3 reward each month you use your card for $50 or more in purchases. Write an equation relating rewards earned, y, to total monthly purchases, x. give the...
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Domain

02/11/16

#### Find the domain of the function h where h(x)=(x(x-12))^1/2

Find the domain of the function h where h(x)=(x(x-12))^1/2

Domain Domain And Interval Notation

02/08/16

#### x^2/4x-3 what is the domain. I can figure this out

This equation has me stumped, I know that it can not equal zero but that is it. Please help.

Domain Equations

01/23/16

#### can someone help and check over the work

Let f(x) = (x - 9)/(x + 2) (a) Calculate f(-3). I got f=-4 for this. or if i didn't finish the entire equation it would be -3f=12
would i finish the equation for...
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