Answer:
2
Step-by-step explanation:
We can find the average rate of change by using the formula
rate of change = (y2-y1) /(x2-x1)
                          = (5-3)/(1-0)
                          = 2/1
                             =2
 
        
                    
             
        
        
        
2-29 it was b but if you lo
        
             
        
        
        
You can use the trigonometric identity  

.

The requirement that 

 eliminates -1/6 from being another solution.