+0  
 
+1
211
3
avatar+1442 

Given that x < 5, rewrite 5x - | x - 5 | without using absolute value signs.

 

Thanks!

 #1
avatar+87571 
+2

Since  l a l   = √ a^2....we can write

 

y  = 5x  - l x - 5 l  =

 

y =  5x - √ (x - 5)^2

 

P.S.  -  I don't know if this is exactly what you want, or not.....!!!!

 

 

cool cool cool

CPhill  Dec 7, 2017
 #2
avatar+1442 
+1

Thanks, your answer was right but it turns out the form wanted was 6x-5 :/ 

 #3
avatar+87571 
+2

OK..... I thought that might be the other form that you wanted....let me show you how to get this

 

We have two points  on the line  (0, -5)  and  ( 1,1)

 

The slope between these points is  [ 1 - -5 ] / [ 1 - 0 ]  =   6/1  = 6

 

Now ....using (0, -5)  we have that

 

y -  (-5)  =  6 (x - 0)

 

y  + 5  = 6x

 

y  = 6x  - 5

 

 

cool cool cool

CPhill  Dec 7, 2017
edited by CPhill  Dec 7, 2017

5 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.