A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
1/(x1)(x3),find out the domain and range
anonymous
 5 years ago
1/(x1)(x3),find out the domain and range

This Question is Closed

Owlfred
 5 years ago
Best ResponseYou've already chosen the best response.0Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the domain is all the real numbers except x=1 and x=3 as you cannot divide by 0. the range is all the real numbers, as the function is unbounded. (for example near x=1 it takes big values)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(x1)(x3) \[=x^24x+3\] Its range is (D/4a,infinity) \[(1,\infty)\] \[1\le (x1)(x3) \le \infty\] \[\infty > \frac{1}{(x1)(x3)} \ge 0\] \[1 \ge \frac{1}{(x1)(x3)} >\infty\] Therefore the range is, \[R  (1,0)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Hey amogh... Is that a standard formula for finding range? (D/4a,Infinity)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0For a quadratic equation, it is the minimum/maximum value (b/2a,D/4a) where D is the discriminant!
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.