If you are given the points: ( 4 , 10 ) and ( 8 , 9 ), what are your y1 and y2? 
A y1 = 10 and y2 = 9
B. y1 = 4 and y2 = 8
C. y1 = 9 and y2 = 10 
D. y1 = 9 and y2 = 10
                                             
                                          
                                          
                                        
											