Friday

August 1, 2014

August 1, 2014

Posted by **H** on Wednesday, December 16, 2009 at 8:47pm.

• Explain how this differs from the graph of the interval [-4, 3].

From the question above, does the answer below sound right?

The interval notion is a way to express solutions of an inequality. Points a and b are the endpoints of the interval; we can include parentheses and brackets to express the interval notation. (a,b) shows that the endpoints are not included in the graph, whereas [a,b] shows that the brackets are included in the graph. The graph of the interval [-4, 3) includes point -4, but excludes point 3; thus this tells us that -4 is less than or equal to x, and 3 is greater than x whereas [-4, 3] is described as a set of all numbers x for which -4 is less than, or equal to x, and 3 is greater than or equal to x…the brackets tell us that the endpoints are included in the graph.

- MATH -
**bobpursley**, Wednesday, December 16, 2009 at 8:49pmit is ok.

- MATH/amendment -
**H**, Wednesday, December 16, 2009 at 9:00pmI added a few more sentences, does this sound okay, or should I exclude it?

The interval notion is a way to express solutions of an inequality. Points a and b are the endpoints of the interval; we can include parentheses and brackets to express the interval notation; (a,b) shows that the endpoints are not included in the graph, whereas [a,b] shows that the endpoints are included in the graph. The graph of the interval [-4, 3) includes point -4, but excludes point 3; thus this tells us that -4 is less than or equal to x, and 3 is greater than x whereas [-4, 3] is described as a set of all numbers x for which -4 is less than, or equal to x, and 3 is greater than or equal to x…the brackets tell us that the endpoints are included in the graph. Thus [-4,3] differs from [-4,3) because one includes one endpoint[-4.3), and the other contains two endpoints [-4.3]. This tells us that in the graph the number can be anywhere between -4 and 3, for this interval notation [-4, 3], but for this interval notation [-4, 3) the numbers can be equal to or less than -4, but any number greater than 3 can be included.

- MATH -
**bobpursley**, Wednesday, December 16, 2009 at 9:00pmTo me, the second is wordy.

- MATH -
**H**, Wednesday, December 16, 2009 at 9:01pmThanks

**Related Questions**

College Algebra - 1.Answer the following for the given quadratic function. f(x...

Calculus - Let f be the function defined for x >or= to 0 with f(0)=5 and f', ...

Math (Algebra) - I do not understand the following question or what to do to ...

Algebra - Can you give me steps on how to do this and can you do this problem so...

Math - I need to describe what the graph of interval [-4, 10] looks like. I have...

Algebra - Totally confused and have 5 more problems like this. Can someone ...

algebra - Explain the words relation and function. Include in your explanation ...

Adv. Math. - Describe how the graph of y= abs(x-2) is related to the parent ...

calculus II - I have the function f(x)=e^x*sinNx on the interval [0,1] where N ...

Algebra - Let f(x) = e^(x – 2) + 3. Answers can be stated without additional ...