write equation in slope intercept form: 
  y + 2 = 4(x + 2)

Slope intercept form cosists of 
these 6 things in this order:

1. The letter y
2. An equal sign =
3. A number  (called the slope)
4. The letter x next to and multiplied 
   by the number in 3
5. A plus or minus sign
6. A number  (called the y-intercept)


y + 2 = 4(x + 2)

y + 2 = 4x + 8
   -2       -2
--------------
y     = 4x + 6

That's it. You have all 6 things there. 
The slope is 4 and the y-intercept is
+6.  The slope 4 means that if you trace 
along the line you have to move upward 
4 times as fast as you move to the right. 

It's graph looks like this:



Notice that it crosses the y-axis at +6, and that
it goes up 4 times as fast as it goes right.

Edwin