Answer: lemme solve it ty
Step-by-step explanation:
hi
 
        
                    
             
        
        
        
 we are given in the problem the number of hours Peter has played for video games. In this case, f(x) is the number of hours of playing with x as the number of weeks of playing. In this case, the equation f(x) = 5x. 
        
             
        
        
        
Answer:
y = -2(x + 1)^2 + 8
Step-by-step explanation:
The equation of a parabola can be written in the form;
y = a(x-h)^2 + k
where a is the multiplier (h,k) is the vertex 
so h = -1 and k = 8
Plug in these values 
y = a(x + 1)^2 + 8
So to get the value of a, we use the point where the parabola passes through which is the point (1,0)
Simply substitute the values of x and y 
0 = a(1 + 1)^2 + 8
0 = a(2)^2 + 8
-8 = 4a
a = -8/4
a = -2
So therefore the equation of the parabola is ;
y = -2(x + 1)^2 + 8
 
        
             
        
        
        
Without the tip it was $60. If you are being asked to add the tip it will be $69
        
             
        
        
        
The answer is C, because there are two different numbers correlated to the same number on the Y side. The table does not represent a function.