Answer:
(3, 1)
Step-by-step explanation:
y = -4x² + 24x - 35 
Find the vertex by using the formula:
- (h, k) → ![\displaystyle \Big [ -\frac{b}{2a}, \ f \Big (-\frac{b}{2a} \Big ) \Big ]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5CBig%20%5B%20-%5Cfrac%7Bb%7D%7B2a%7D%2C%20%5C%20f%20%5CBig%20%28-%5Cfrac%7Bb%7D%7B2a%7D%20%5CBig%20%29%20%5CBig%20%5D)  
In this problem, we have:
Using 24 for b and -4 for a, we can substitute these values into the vertex formula:
The h-value for the vertex is 3. 
Now let's plug 3 back into the standard form equation to solve for the k-value of the vertex.
The k-value for the vertex is 1. 
The vertex of the parabola is (3, 1).
 
        
             
        
        
        
N=-2
Add 42 to both sides to get -6n=12
Divide both sides by -6
        
             
        
        
        
Answer: is it 0.258 
Step-by-step explanation: