Answer:
the slope is -1/2 and the y-intercept is -4
Step-by-step explanation:
The original formula is y=mx+b. m is the slope of the graph and b is the y-intercept. You just plug in the numbers to the original formula to get the formula for the graph. The slope is always the number that is right next to the x, or the number which is multiplied by the x. The y-intercept is always the number that is not by x. 
 
        
             
        
        
        
The answer is B. Multiply
 
        
                    
             
        
        
        
Answer:
288
Step-by-step explanation:
answer is in photo above