Question 177454
The process is the same. 
Find the change in y between two points and the change in x. 
Divide those two to find the slope.
The absolute value graph will have two slopes:one for the positive region, one for the negative region. 
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Here's an example
{{{y=2*abs(x-2)}}}
{{{drawing( 300, 300,-6, 6, -20, 20,grid( 1 ),circle( 2, 0, .2 ), 
circle(4,4,.2),
circle(0,4,.2),
graph( 300, 300, -6, 6, -20, 20, 2*abs(x-2))) }}}
Two points in the negative slope ({{{m[n]}}}) region : (0,4) and (2,0)
Two points in the positive slope ({{{m[p]}}}) region : (2,0) and (4,4)
{{{m[n]= (DELTA*y)/(DELTA*x)= (0-4)/(2-0)=-4/2=-2}}}
{{{m[p]=(DELTA*y)/(DELTA*x)=(4-0)/(4-2)=4/2=2}}}