+0  
 
0
1160
1
avatar

find f(-5)

 

 f(x) = |x|

 Jun 16, 2014

Best Answer 

 #1
avatar+128079 
+8

f(-5)   means that we are putting "-5" in for "x" in the absolute value function........ l x l

l -5 l       We are basically asking....."How far is -5 from 0 on the number line??"   Answer....5 units

So l -5 l  = 5         Absolute value measures distance so it is always either positive or 0......

 

 Jun 16, 2014
 #1
avatar+128079 
+8
Best Answer

f(-5)   means that we are putting "-5" in for "x" in the absolute value function........ l x l

l -5 l       We are basically asking....."How far is -5 from 0 on the number line??"   Answer....5 units

So l -5 l  = 5         Absolute value measures distance so it is always either positive or 0......

 

CPhill Jun 16, 2014

1 Online Users