Start with the point-slope form:
.
Then you substitue in the slope and coordinates from the point:

You don't do a lot of clean up to the form, with the exception of turning "minus negative 7" into "plus 7".

Thar be yer answer!
Answer:
The increasing interval is 
Step-by-step explanation:
This absolute function has a vertex in x=-2. Now, from this point, the function has a positive slope (increasing), which means for values of x equals to -1,0,1,2,3,...,n.
Therefore the interval will

I hope it helps you!
I think it’s -1.69642857143