140 Answered Questions for the topic Domain


What is the difference between domain of x/x and 1?

if f(x) = x/x and g(x) = 1, then f(x) = g(x). But why is the domain of f(x) is all non-zero all real number and g(x) is all real number?


Math find domain restrictions

Which functions has the fewest domain restrictions for real number? A) f(x)= 1/(x-1)B) f(x)= 1/(x+1)C) f(x)= 1/(x^2-1)D) f(x)= 1/(x^2+1)


What's the domain of the following functions?

First function:y = 1÷(x+3)Second function:y= √x


Functions, Domain, Independent/Dependent

The annual cost of health insurance H as a function of age a is given by the function H(a)=22.6a-119.2 for 15 is less than or equal to a is less than or equal to 90.What are the independent and... more


Compute the domain of the function

Compute the domain of the function f(x)= ax−15 in terms of a. Assume a>0. Answer with an interval, i.e. [0, infinity), or unions of intervals, i.e. (-infinity,1]U(6,9), or answer simply with an... more


How do I find the domain

I have the function of y=(e^x/3)/4 how can I find out the domain?


Find the (implied) domain of the function. u(w) = ( w − 2) /(5 − sqrt w)

how does this work 


Find the (implied) domain of the function. (A(x) = sqrt (x − 4) + sqrt (9 − x)

i dont know how to figure this out


Find the (implied) domain of the function of Q(r) = (sqrt (r))/ r − 2

i thought is was just everything but what makes the denominator zero so shouldnt it be everything but 2


what is the domain of y=sqrt(tan(x))

y = sqrt ( tan(x) ) 


domain of (x + 3)/( x^2 − 36)

I can't figure it out


domain of x + 3/ x^2 − 36

i wanna know the answer to this


the domain of the sqaure root (21x − 7)

i cant figure out the domain the graph shows 0 to infinity but tit says its wrong


what is the domain of 21x/12+sqrt(4x−4)

domain of 21x/12+√4x-4


What is the difference between [2, infinity) and (1, infinity)?

Don’t the both of them mean the same? i.e from 2 to infinity? There was this one mcq which had both of these options. So how do yoy differentiate between the two?  


Find the domain, asymptotes, and x-intercepts of the function, and then sketch its graph.

a) f(x) = log(x −4)        b) f(x) = log(5 − x)         c) f(x) = − ln(x + 2)


How can you compute the domain of g and g'(t) without computing any integrals in its definiton?

g(t)= ∫0t((1/1-x)+(1/(1+x)^2))dx  


Find the domain of the logarithmic function. f(x) = log(x+5/x-2)

Show all steps. The equation is f(x)=log (x+5 over x-2)


Find the domain of the logarithmic function. f(x) = ln (8 - x)

Show all work, step by step. 


find the domain of f(x)



State the domain for f(x) =x/x+4 and y=√13+x and P(x) = −2^2 + 40x − 34

state the domain   13+x is to the root did not show in question


you buy a new car that costs $25000 the car depreciates at a rate of 11% per year

independent variable domain and range 


PRECALC QUESTION: Can someone check to see if I got the right domain?

Question: Write the formula for the function f(x) whose graph is obtained by shifting the graph of √x up 3 units and then reflecting it across the y-axis. What is the domain of f(x)?So for the... more
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