You determine whether the parabola opens upward, with a positive x^2.  It opens downward with a negative x^2.
f(x) is a maximum
g(x) is a minimum
        
             
        
        
        
Hi, 
A is the  answer as   :    -2+2 = 0  and  5 -5 = 0 
 
        
             
        
        
        
A rectangular prism<span>, any pair of opposite faces </span>can<span> be </span><span>bases</span>
        
                    
             
        
        
        
You can literally determine the sisters height by adding 4 + 3 because it says she’s 3 years older I’m not saying that she equation because the equation needs to include x so 4 + 3 = x
        
                    
             
        
        
        
The answer is D 105 because i know