A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Please Help with PreCalc Questions anybody please...?
For each of the following functions, identify any restrictions on its domain.
5. F(x) = cubroot of (x2) +3
6. F(x)=log(x5)+1
7.e^(x+4)+7
Is there any value of x that would cause this function to be undefined?
If there are restrictions on the domain, explain those restrictions.
If there are no restrictions, explain why that is.
anonymous
 one year ago
Please Help with PreCalc Questions anybody please...? For each of the following functions, identify any restrictions on its domain. 5. F(x) = cubroot of (x2) +3 6. F(x)=log(x5)+1 7.e^(x+4)+7 Is there any value of x that would cause this function to be undefined? If there are restrictions on the domain, explain those restrictions. If there are no restrictions, explain why that is.

This Question is Closed

freckles
 one year ago
Best ResponseYou've already chosen the best response.1well can you do cuberoot of any real number? for example do you know the cuberoot(1)=? or the cuberoot(0)=? or the cuberoot(1)=?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1yes so you can do cuberoot(1)=1 so you can do cuberoot of negative numbers or even 0 or positive numbers right?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1The cuberoot function is defined everywhere.

freckles
 one year ago
Best ResponseYou've already chosen the best response.1what about log can you do log(0) or log(1)?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so you know you do log(positive) only

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so you will have restrictions for the log function you have above

freckles
 one year ago
Best ResponseYou've already chosen the best response.1you want x5 to be positive

freckles
 one year ago
Best ResponseYou've already chosen the best response.1therefore you want x5 greater than 0 so just solve x5>0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so for the firs question i just say that it is undef at log(1) and log(0)?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1well it is undefined when the inside is negative or zero so if you are looking where it is undefined instead of define just negate x5>0 and you have x5<=0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0? how would i answer the first question?im confused

freckles
 one year ago
Best ResponseYou've already chosen the best response.1I thought we already said yes to that question because you cannot do log(negative or zero number)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1we can do log(positive number) x5 is positive when it is greater than 0 so you can find x such that x5>0 by solving the inequality

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0srry i thought your most recent post was about the first question..

freckles
 one year ago
Best ResponseYou've already chosen the best response.1I thought the first question is it undefined anywhere

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just continue i understand now

freckles
 one year ago
Best ResponseYou've already chosen the best response.1do you have any questions?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes can u help me with the rest of them?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Do you know anything about e^x?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1Do you know of any restrictions ?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1for example does e^(7) or e^(0) or e^(8) exist?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1can you raise positive numbers to a negative,0, or positive power?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes it comes out a decimal

freckles
 one year ago
Best ResponseYou've already chosen the best response.1ok e^x exists everywhere

freckles
 one year ago
Best ResponseYou've already chosen the best response.1you can also look at a visual and see this too

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so only one of the functions you listed has restrictions (or some place where it is not defined) over the real numbers

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok thank u i appreciate it

freckles
 one year ago
Best ResponseYou've already chosen the best response.1so you did understand cuberoot and exponential functions exist everywhere over the real numbers and has domain all real numbers but log functions do have restrictions over the real number because you can only do log(positive numbers)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.