Answer:
Sweetie, it's easy. Let me explain. 
The slope formula is (y2 - y1) (x2 - x1) you find the slope by putting the rise over the run. For example, if the point goes up 2 and right 3 your slope would be (2,3) and let's just say your next coordinate is (4,5) you would take the y, 5, from the second coordinate and subtract it by the y from the first coordinate, 3. So you would have 2 and you do the same with the x values. So your slope would be 3/2. Hope I helped at all.
Step-by-step explanation:
 
        
             
        
        
        
The answers to the questions
 
        
        
        
Answer:
Option D is the correct answer 
Step-by-step explanation:
D. Yes, because it passes the vertical line test.
 
        
             
        
        
        
Answer:
2047
Step-by-step explanation:
We are given that
Growing rate=0.7%



Using the formula 



Initially when t=0,P=323 million
Substitute the values 


Now, substitute P=400 million





Year=2016+31=2047
Hence,In 2047 the U.S population will reach 400 million people.
 
        
             
        
        
        
Answer:
C. 
Step-by-step explanation: