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anonymous
 one year ago
Interval notation of domain:at most 6
anonymous
 one year ago
Interval notation of domain:at most 6

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mathmate
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440459096813:dw Does that help?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Kinda but I still don't really know how to write it??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Like for the set notation I got x/x>=6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok let's move onto a different on then?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Interval notation basically gives the lower and upper bounds. For example, for a range of real numbers between 4 and 6, inclusive, we write [4,6]. If it is exclusive, we use ( or ) instead, for example, for x>3, then we write x\(\in\) (3,\(\infty\)), because both 3 and infinity are not included. (Infinity is not a real number).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so what would the answer be in this problem? (\[\infty,6\]

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Yes, but you need the appropriate brackets around the two numbers (separated by a comma, as you correctly did).

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1The interval excludes \(\infty\) but includes 6. Can you find the appropriate brackets?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I can't fine them in the equation box?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440459864333:dw

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1The left one should be a (, because \(\infty\) is not a number, so must be excluded.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks! I dont understand this last one: 4x8>12 and 5x1<=9 in set notation

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Have you solved for x yet?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Good! Can you show that on a number line? In interval notation, it would be (1,2]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440460335843:dw

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Good! For the previous problem in set notation, it would be \(\{x\in R  \infty<x\le 6\}\) Because { } enclose a set of numbers that belong to a set, e.g. {1,2,3}. Here you define x as a real number, such that inf<x<=6, all of them belonging to the set. Here's a very easy to read article: http://www.sosmath.com/algebra/inequalities/ineq02/ineq02.html

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What about the 2nd one?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Try it out like the first one, and I can help you correct it if necessary.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440460869976:dw

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Almost, \(\{x\in R~  1<x\le2\}\) The vertical bar after R reads "such that". The outside braces enclose the content of the set.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Don't worry about it. What's important is that you understand what's being done. Reading the article will make it more clear.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I do. More or less. I dont get interval notation though?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1The article talks about interval notation as well, so you get two birds with one stone! lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Cool!! Thanks so much for all your help:))
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