Question 104430
Start at the origin (where the the x and y axis intersect)


Now move your pencil 3 units to the right

We move 3 units in this direction since the x-coordinate is 3 (its the first number of the pair)




{{{drawing(500,500,-6,6,-6,6,
grid(1),
blue(arc(0.5,0,1,2,180,0)),
blue(arc(1.5,0,1,2,180,0)),
blue(arc(2.5,0,1,2,180,0))
)}}}


Now go 5 units down

We move 5 units in this direction since the y-coordinate is -5 (its the second number of the pair)



{{{drawing(500,500,-6,6,-6,6,
grid(1),
blue(arc(0.5,0,1,2,180,0)),
blue(arc(1.5,0,1,2,180,0)),
blue(arc(2.5,0,1,2,180,0)),
green(arc(3,-0.5,1,1,270,90)),
green(arc(3,-1.5,1,1,270,90)),
green(arc(3,-2.5,1,1,270,90)),
green(arc(3,-3.5,1,1,270,90)),
green(arc(3,-4.5,1,1,270,90))
)}}}


Plot a point where the pencil lands


{{{drawing(500,500,-6,6,-6,6,
grid(1),
circle(3,-5,0.08),
circle(3,-5,0.10),
blue(arc(0.5,0,1,2,180,0)),
blue(arc(1.5,0,1,2,180,0)),
blue(arc(2.5,0,1,2,180,0)),
green(arc(3,-0.5,1,1,270,90)),
green(arc(3,-1.5,1,1,270,90)),
green(arc(3,-2.5,1,1,270,90)),
green(arc(3,-3.5,1,1,270,90)),
green(arc(3,-4.5,1,1,270,90))
)}}}


So here is the point (3,-5)


{{{drawing(500,500,-6,6,-6,6,
grid(1),
circle(3,-5,0.08),
circle(3,-5,0.10)
)}}}