Login

Welcome, Guest. Please login or register.

April 11, 2026, 03:27:00 am

Author Topic: Inequality problems  (Read 582 times)  Share 

0 Members and 1 Guest are viewing this topic.

bully3000

  • Victorian
  • Trendsetter
  • **
  • Posts: 110
  • Respect: -5
Inequality problems
« on: April 02, 2013, 12:28:27 am »
0
Solve the following inequality problems. You must give your answer using the interval notation. You muts also give your answer in graphical form (using the number line). (a) or. (b) and

Please help with the above problems!

Any help will be appreciated!

What is the difference between "and" and "or"?

Phy124

  • Honorary Moderator
  • Part of the furniture
  • *******
  • Posts: 1354
  • Respect: +464
Re: Inequality problems
« Reply #1 on: April 02, 2013, 01:35:03 am »
0
Solve the following inequality problems. You must give your answer using the interval notation. You muts also give your answer in graphical form (using the number line). (a) or. (b) and

Please help with the above problems!

Any help will be appreciated!

What is the difference between "and" and "or"?
(a)













i.e. x can be greater than 4 or less than or equal to 1.

Represented on a number line by an open circle at 4 and an arrow pointing to the right from this point and a closed circle at 1 with an arrow pointing left from this point.

(b)
















i.e. x must be less than two and greater than or equal to negative one

This is represented on a number line by a close circle at -1 and an open circle at 2 with a line connecting the two.

"and" and "or" are pretty self explanatory, "and" means it must satisfy both conditions while "or" means it only needs to satisfy one of the conditions.

For example if the second example had have been "or" rather than "and", x could have taken an infinite number of values, rather than the domain [-1,2)

edit: I accidentally left out a negative
« Last Edit: April 02, 2013, 01:43:32 am by 2/cos(c) »
2011
Mathematical Methods | Physics | Chemistry | English | Business Management

2012-2017
Bachelor of Science in Applied Mathematics and Bachelor of Civil Engineering (Honours) @ Monash University

Current
Transport Modeller @ Arup