A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Jake says that the function is defined at x = –1, x = 3, and x = 4. Yoe says that the function is undefined at those x values. Who is incorrect? Justify your reasoning.
anonymous
 one year ago
Jake says that the function is defined at x = –1, x = 3, and x = 4. Yoe says that the function is undefined at those x values. Who is incorrect? Justify your reasoning.

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0f(x)=(x1)(x+2)(x+4)/(x+1)(x2)(x4)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you understand the function I wrote or should I draw i?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1from the text of your problem I can write this expression for function f(x): \[\Large f\left( x \right) = \frac{{\left( {x  1} \right)\left( {x + 2} \right)\left( {x + 4} \right)}}{{\left( {x + 1} \right)\left( {x  2} \right)\left( {x  4} \right)}}\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1now we can not divide by zero, so we have to exclude those values of x, such that: \[\Large \begin{gathered} x + 1 = 0 \hfill \\ x  2 = 0 \hfill \\ x  4 = 0 \hfill \\ \end{gathered} \] in other words we have to be certain that the denominator is not equal to zero

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1for example if I solve the first equation, I get: x=1 so I have to exclude that value

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1If I solve the second equation, I get: x=2 again, I have to exclude the value x=2

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1similarly for third equation: x4=0 which gives: x=4, and i have to exclude that value

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So the answer would be? @Michele_Laino

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1Edward is right!
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.