Answer:
Domain is all the values that go into a function, and range are the values that come out of that function
Step-by-step explanation:
A value is an integer, so when you have an INPUT (your domain) that makes a line/slope, an OUTPUT (your range) will be your outcome, aka your answer
 
        
             
        
        
        
Use the given times and velocities to make two points:  (1,4) and (2,2)   
Part A: 
Slope is the change in Y over the change in X from the two pints you made:
 Slope =  (2-4) / (2-1 )= -2
Now you have the slope, calculate the Y-intercept
y = -2x + b
Using (1,4)
4 = -2(1) + b = 4 =-2 +b. b = 6
 Equation is: y = -2x+6
Part B:
using the above equation replace x with 1, 2, 3, and 4 and solve for the Y
 then plot those onto a graph
 
        
             
        
        
        
y=3x-20 thats ur answer good luck
 
        
             
        
        
        
I can’t see 
Take a picture with it zoomed in
        
                    
             
        
        
        
(1,44) 1/23 he. said he is so happy