Convert 10 1/2. To 21/2. So the answer would be 6 3/10.
        
             
        
        
        
Answer:
y = 3x 
Step-by-step explanation:
Given line slope = m = -1/3 
    perpendicular line slope = - 1/m = 3 
 
Point slope form through point 1, - 3
(y+3) = 3 ( x-1)       expand and rearrange
y -3 = 3x- 3
   y = 3x - 6  
 
        
             
        
        
        
Answer:
(-2,3)
Step-by-step explanation:
When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite (its sign is changed). Notice that B is 5 horizontal units to the right of the y-axis, and B' is 5 horizontal units to the left of the y-axis. the y-axis is the point (-x,y).