Answer:
Option C, 
Step-by-step explanation:
We can find the correct answer by plugging in the x and y values of a point on the graph into each option, then finding the one that gives a true statement as a result. 
For example, one point on the graph is (30,4). We can substitute 30 for the x and 4 for the y in option C's equation,  . Then, simplify:
. Then, simplify: 
 
 
4 does equal 4, so when we substitute a point from the graph into this equation, the result is a true statement. Thus, option C is the answer. 
 
        
             
        
        
        
Well I am going to assume you need slope-intercept form. So the equation is y=mx+b. m is slope, b is y intercept. So you just plug it in -6= -1/2(6)+b. -6=-3+b. Now you figure out for b so what does b have to be to make the equation equal. Well -3 so -6=-3+-3, or -6=-6. 
y=-1/2x-3
 
Hope that helped
        
             
        
        
        
Answer:

Step-by-step explanation:
hope this helps.
 
        
                    
             
        
        
        
Answer:
D. y=-3x+8
Step-by-step explanation:
first, get the 12x on the other side of the equation
12x+4y-12x=32-12x
4y=-12x+32
divide the equation by four
y=-3x+8
Hope this helps!
 
        
             
        
        
        
Answer:
The correct answer is 30
Step-by-step explanation:
Given: The x-axis represents the time in hours and the y-axis represents the distance in miles. 
The line passes through the points  and
 and 
To find: The rise-over-run value for the relationship in the graph.

Thus, the rise-over-run value for the relationship represented in the graph is 30.