Hack
for y=ax^2+bx+c
the xvalue of the vertex is -b/2a
and the y value is found by subsituting that for x
so
-b/2a
h(t)=2x^2+4x+7
a=2
b=4
-b/2a=-4/(2*2)=-4/4=-1
the y value
h(-1)=2(-1)^2+4(-1)+7
h(-1)=2(1)-4+7
h(1)=2+3
h(1)=5
(-1,5) is da vertex
        
             
        
        
        
Idk
What to do. 
What to do. 
What to do.
What to do.
What to do.
        
                    
             
        
        
        
Answer:
195.75
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
24
Step-by-step explanation:
3    9
8     
9 times 8 
divided by 3 = denominator 
9x8÷3=24