Question 1046765
Point (a, b) is transformed by the rule (a, b−4)
For example: Blue Point to Green Point
Using as Ex: (6,8) and (6,4) (Green)
a translation of 4 units down
{{{drawing(300,300,    -10,10,-10,10, 
 grid(1),
circle(6, 8,0.4),
green(circle(6,4,0.4)),
graph( 300, 300, -10,10,-10,10,0))}}}