You only know. The n stands for the term number.
        
             
        
        
        
To find x- intercepts 
y = 0
(x+4)(x-2)=0
x+4=0 or x-2 = 0
x = -4 or x = 2
And the vertex will be (-1,-9)
The correct option is (B)
        
             
        
        
        
Answer:
520 feet
Step-by-step explanation:
The area=16900
Area formula=b^2
b^2=16900
square root of 16900=130
130*4=520
 
        
             
        
        
        
Answer:
this should help I guess pls tell me if it was wrong
 
        
             
        
        
        
Answer:
When you flip over the the x-axis, the y-coordinate becomes the additive inverse. I.e. ; if I flipped over the x-axis, a (x,4) would become (x,-4). When you flip over the y-axis the x becomes the additive inverse. (x,4) will become (-x,4)
Step-by-step explanation:
If this helped you, you're welcome. If you have any questions, LMK. 
Have a good day, and good luck! ⭐