You first have to simplify the equation which will get you to y=2x+9
Then you have to graph the equation 
Formula:y=mx+b 
m = the slope
b = y-intercept
You first start out with the point (0,9) and go up 2 and right 1 or you could do the opposite which would be down 2 and left 1. So some of the points would be (-6,-3) (-5,-1) (-4,1) (-3,3) (-2,5).
And it would form a line
I hope this helped!
        
             
        
        
        
Im pretty sure it would be D. t=3.2 x d. Because you would multiply the time and distance. 
Sorry if im incorrect
        
             
        
        
        
Answer:
The equation is true
Step-by-step explanation:
First, input -4 instead of m in the equation:
5(-4 - 1) = -25
Then, distribute:
-20 - 5 = -25
Finally, simplify:
-25 = -25
This equation is true, and that's how you prove it.
Hope this helps!
 
        
                    
             
        
        
        
what number though I can probably help you but what number do you need to round.