![Kaylak01](/avatars/31027.jpg)
Kaylak01
09.04.2021 •
Mathematics
PLEAS HELPP MEEE:<
RELATIONS AND FUNCTIONS
A. Let A = {2, 3, 4} and B = {6, 8, 10} and define a relation R from A to B as follows: For all (x, y) ∈ A x B,
(x, y) ∈ R means that yx is an integer.
a. State explicitly which ordered pairs are in A x B and which are in R.
b. Is 4 R 6? Is 4 R 8? Is 3 R 8? Is 2 R 10?
c. What are the domain and co-domain of R?
Solution:
B. Let E = {1, 2, 3} and F = {-2, -1, 0} and define a relation R from E to F as follows: For all (x, y) ∈ E x F,
(x, y) ∈ R means that x - y3 is an integer.
a. Which set of ordered pairs are in R.
b. Is 3 R 0? Is 1 R (-1)? Is 2 R (-1)? Is (3, -2) ∈ R?
c. What are the domain and co-domain of R?
Solution:
C. Let X = {2, 4, 5} and Y = {1, 2, 4, 6}. Which of the following determine functions from X to Y?
1. {(2, 6), (2, 2), (1, 1), (5, 4)}
2. {(2, 4), (4, 1)}
3. {(2, 4), (4, 1), (4, 2), (5, 6)}
4. {(2, 6), (4, 2), (5, 2)}
5. {(4, 2), (5, 4)}
Solved
Show answers
More tips
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
Answers on questions: Mathematics
- M Mathematics What is -0.56 as a fraction in simplest form? -14/25 -5/6 -56/100 -7/10...
- M Mathematics Which equation represents a line which is parallel to the line y=7/4x-3...
- M Mathematics An angle measures 52º more than the measure of its complementary angle. What is the measure of each angle?...
- M Mathematics Ab ca. 2. Un terreno cuadrado estaba cercado y se quiere extender la cerca 3 me- tros en uno de sus lados y 4 metros en el otro lado, lo que resulta en una superficie final de 469...
- H Health To get the best results when working out, it is a good idea to evaluate your starting point and track your progress from there. What are some basic assessments and measurements that...
Ответ:
Ответ:
rkdjdjdndbddbdbsbdbd r e