Answer:
x        y
-2      5
-1 .      1
3 .       1
-1        -2
Step-by-step explanation:
in 1 just put in
x        y
-2      5
-1 .      1
3 .       1
-1        -2
 
        
             
        
        
            
            
                Sketch the points (0,5,2),(4,0,-1),(2,4,6) and(1,-1,2) o a single set of coordinate axes? 
                nordsb [41]             
         
        
Explanation:
As points have three coordinates i.e. x, y and z hence the sketch of the given four points is drawn in 3D shape and for that picture is attached here with this answer.
Points are given in the format as below
(value of x-coordinate , value of y-coordinate , value of z-coordinate)
In the attachment:
Point A = (0,5,2) (in blue color)
Point B = (4,0,-1) (in purple color)
Point C = (2,4,6) (in orange color)
Point D = (1,-1,2) (in black color)
 
        
             
        
        
        
Football State University = $21.42 for one game
University of Football = $25 for one game
Gridiron University = $29.16 for one game
Sports University = $31.25 for one game
 
Out of these, Football State University gives the best deal on football tickets.