Y=2x+3,when x is equal to 0,y is equal to 3, which means intercept is equal to 3
        
                    
             
        
        
        
13. The answer would be B
14. The answer would be C
        
             
        
        
        
45 because 270 + 45 =315 . So 360-315= 45
 
        
             
        
        
        
Each pair of interior angle and the exterior angle 
So the exterior angle = 360° - the interior angle.