Answer:
Step 1 is ya answer!!! UwU
Step-by-step explanation:
Sorry if im wrong!!! T>T But it should be right!!! :D
 
        
             
        
        
        
The length of segment WK is 9, I hope help it to you
        
             
        
        
        
1. c
2. b
3. a
hope this helps
        
             
        
        
        
Answer:
   m(u) = -0.25(u +2)² +1    or    -0.25u² -u
Step-by-step explanation:
The equation is fairly easily written in vertex form, as the vertex point is on a grid line intersection at (-2, 1). The parabola opens downward, so the scale factor is negative. 
The vertical change from the vertex is only a fraction of a unit when u differs from the vertex by 1. It is 1 unit when u differs from the vertex by 2, so the magnitude of the vertical scale factor is 1/2² = 1/4.
Our equation will be of the form ...
   m(u) = (vertical scale factor)(u - (horizontal vertex location))² + (vertical vertex location)
For this graph, the equation is ...
   m(u) = -0.25(u +2)² +1
or, simplifying, we get ...
   m(u) = -0.25u² -u