Answer:vertices
Step-by-step explanation:
 
        
                    
             
        
        
        
I’m guessing you subtract 78-52 then divide by original which was 52.. so July is 50% warmer.
        
             
        
        
        
Answer:
f(2) = -6
General Formulas and Concepts:
Order of Operations: BPEMDAS
Substitution and Evaluation
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = -2x² + 4x - 6
f(2) is x = 2
<u>Step 2: Solve</u>
- Substitute:                          f(2) = -2(2)² + 4(2) - 6
- Exponents:                         f(2) = -2(4) + 4(2) - 6
- Multiply:                              f(2) = -8 + 8 - 6
- Add:                                    f(2) = -6
 
        
             
        
        
        
Answer: It looks correct to me !
Step-by-step explanation: