The "m" in y = mx + b is the <u>slope.</u> 
It is the number of units a point goes up, down, left, or right each time. Making the line linear/straight.

"rise" is the the number of units you go up(+) or down(-), "run" is the number of units you go to the right
For example, if your slope is:

You are going up 1 unit, and to the right 2 units
3 or 
You are going up 3 units, and to the right 1 unit

You are going down one unit, and to the right 2 units
-3 or 
You are going down 3 units, and to the right 1 unit
 
        
                    
             
        
        
        
Step-by-step explanation:
f(2)= -2×2×2+ 6×2 -7
 =-8+12-7
 =-3
 
        
             
        
        
        
Answer:
144 degrees
Step-by-step explanation:
We can use the formula (n-2)(180), where n = number of sides, to find the sum of all the interior angles in the decagon. Since a decagon has 10 sides:
(n-2)(180) = ?
(10-2)(180) = ?
(8)(180) = 1440.
Now, to find one interior angle in the decagon, divide 1440 by the number sides in our polygon (10). 
1,440/10 = 144
                = <u>144 degrees</u>
 
        
             
        
        
        
8w 
-8w times -w is like -8*-1 which would just make the number positive.