Answer:
A
Step-by-step explanation:
the formula of the slope is (y2 - y1)/(x2 - x1) 
slope = (3-2)/(-1-2) = 1/(-3) = -1/3
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Vertex form is accomplished by completing the square on the quadratic. Do this by first setting the parabola equal to 0 then moving the constant over to the other side:

Now take half the linear term, square it, and add it to both sides. Our linear term is 6. Half of 6 is 3, and 3 squared is 9:

The reason we do this is to create a perfect square binomial on the left:
 (obviously the 0 results from the addition of 9 and -9). Move the 0 back over to the other side and set the quadratic back equal to y:
 (obviously the 0 results from the addition of 9 and -9). Move the 0 back over to the other side and set the quadratic back equal to y:

This gives you a vertex of (-3, 0), which is a minimum value, since the parabola opens upwards.
 
        
             
        
        
        
Answer:
umm... i belive yes. 
Step-by-step explanation:
this is beacuse..
800 opposite wold be -800 right
and then the opposite of -800 wold be 800
so 800 is equal to 800 cus ya
so yes i belve that this is true.