Answer:
The most reasonable is 2 h
Step-by-step explanation:
If you see the graph is decreasing in hours while is increasing in years. When a person is 45 years the amount of daily physical activity is 3 hours, so a person that is 50 years needs to do less than 3 hours a day and the only option less than 3 hours is 2 hours.
 
        
             
        
        
        
The Answer is the first one
        
             
        
        
        
The question is incomplete.
This is the complete question as I found in internet:
<span>Use substitution to determine which of the following points is a solution to the standard form equation below 5x-2y = 10 
these are the points: 
</span>
-1,5 
1,5 
0,-5
0,5
Answer: (0, -5)
Explanation:
point          x           y        5x - 2y = 10 ?
-1,5         -1           5         5(-1) - 2(5) = - 5 - 10 = - 15 ≠ 10 ⇒ not a solution
1,5            1          5         5(1) - 2(5) = 5 - 10 = 5 ≠ 10 ⇒ not a solution
 
0,-5           0        -5           0 -2(-5) = 10 ⇒ a solution
0,5             0         5          0 - 2(5) = - 10 ≠ 10 ⇒ not a solution
        
             
        
        
        
The domain is {-9,-4,3,9}
The range is {2}
        
             
        
        
        
Answer:
(-4,-19)
Step-by-step explanation:
y = x² + 8x - 3
y = x² + 2(x)(4) + 4² - 4² - 3
y = (x + 4)² - 16 - 3
y = (x + 4)² - 19
Vertex: (-4,-19)