x = -9 and x = 8 when y = 0 is the answer
 
        
                    
             
        
        
        
Answer:

• For parallel line, their gradients are the same:
→ m = ⅓
• From general equation of a line;

• For the point (9, -1):

therefore:

 
        
             
        
        
        
Answer:
A. a parabola that opens down.
Step-by-step explanation:
First we can eliminate two answers, b and d, since parabalas that open left or right use the y variable. 
Now the equation of a standard parabola is x². This means that there are no negative y values, and therefore it cannot open down, it is up.
With a NEGATIVE coefficient, the graph is flipped over the x axis, therefore making it open down.
Graphical proof is attached for further understanding, positive a is in red, negative a is in blue. 
 
        
                    
             
        
        
        
Answer:
b 119,600
Step-by-step explanation:
250+270+26+5=551 250+270 = 520 520/551 ~94% 
94% of 126,776~ 119,600
 
        
             
        
        
        
55° for both. A triangle always adds up to 180 degrees. If A and C are both equal then it's pretty straightforward. 180 - 70 = 110. Split the other two angles in half. 110 ÷ 2 = 55. BAM!