Wednesday

October 1, 2014

October 1, 2014

Posted by **Joey** on Thursday, September 29, 2011 at 11:33pm.

Here is the question:

Write the set of points from -2 to 4 but excluding -1 and 4 as a union of intervals

my solution to this would be: [-2,4]U(-1,4)

my reasoning:

The first set includes -2 and goes up to and includes 4, the second includes everything greater than -1 and goes to everything less than 4. This way, the integer -2 is still included. BUT, this is wrong.

- Math 111 -
**Steve**, Friday, September 30, 2011 at 11:45amIf you had all the points, you'd have [-2,4]

But, you have to exclude 4, leaving [-2,4)

Now, inside this interval, you exclude -1, so you have to break it up into two intervals:

[-2,-1)U(-1,4)

- Math 103 -
**Linda**, Wednesday, September 18, 2013 at 5:11pmWrite the set of points from -5 to 1 but excluding -4 and 1 as a union of intervals

- Math 111 -
**Anonymous**, Tuesday, September 30, 2014 at 5:39pm(-5,1)U(-4,1)

**Answer this Question**

**Related Questions**

Math - I need help setting up this problem: Write the set of points from -7 to 1...

math - The fraction 5Y3X/2Y8, in which x and Y stand for two unknown digits, ...

math - I do not know how to answer this question. Would someone please help me ...

AP Physics - Hi, I have the follwoing physics question to ask, Plesae help with ...

Math!!! - I have an MSA math question. What scale would you use for making a ...

math - Original Question is: how many 1/2 miles are in 12 miles? write the ...

Math - Here is my question: Use counters to model the difference -2-5. Here is ...

English - Hello, everybody. I have a lot of point cards. For your activities, ...

Math - I have a question that I answered and I'm not sure that it is right. Here...

Math - Question 2 For the function f(x) = 3x2-2x-7, find f(2). Answer f(2) = 13 ...