General equation of parabola:  y-k = a(x-h)^2
Here the vertex is at (0,0), so we have y-0 = a(x-0)^2, or y = ax^2
All we have to do now is to find the value of the coefficient a.
(1,2) is on the curve.  Therefore, 2 = a(1)^2, or 2 = a(1), or a = 2.
The equation of this parabola is y = 2x^2.
        
             
        
        
        
Answer: 2.2 I think is a 70 %  C.  It might depend on the school district though. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Bart is correct
Step-by-step explanation:
 
        
             
        
        
        
Answer:
There are 91 dimes in the jar.
Step-by-step explanation:
5n+10d= 1455
n+d = 200
n=200-d
5(200-d) + 10d=1455
1000-5d+10d=1455
1000+5d=1455
5d=455
d=91
91 dimes
 
        
                    
             
        
        
        
None, because you need to make over 15,000 a year to be taxed. And with all that money for one year would not be taxed.