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I believe this is a ceiling function but I haven't ever used one and was wondering how to solve this type of problem? Please just explain what they do/work and how to solve a ceiling function

 Mar 12, 2019
 #1
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xxxxxxxxxx

 Mar 12, 2019
edited by Guest  Mar 12, 2019
edited by Guest  Mar 12, 2019
 #2
avatar+28238 
+4

This should help:

 

floor function:   floor(x) is the greatest integer less than or equal to x.   e.g.  floor(3.4) = 3

 

ceiling function:  ceil(x)  is the smallest integer greater than or equal to x.  e.g.  ceil(3.4) = 4

 

 Mar 12, 2019
 #3
avatar+105347 
+2

We can solve this

 

(x + 3)  = 10 ( x - 1) + 4

 

x - 1  = 10 (x - 1)

 

10 (x - 1) - 1(x - 1) = 0

 

9 ( x - 1) = 0

 

x = 1  =  the floor

 

This  means that  any   x  on the interval  [ 1, 2)  will solve this equation

 

 

cool cool cool

 Mar 12, 2019
 #4
avatar+256 
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Thanks, CPhill!!! 

SydSu22  Mar 13, 2019

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