Question 701988
{{{drawing(400,400,-7,7,-7,7, grid(1), circle(-3,1,.2), circle(2,1,.2)


)}}}

The little circle on the left is the point (-3,1) and the
little circle on the right is the point (2,1).

Now we draw a red line between them:

{{{drawing(400,400,-7,7,-7,7, grid(1), circle(-3,1,.2), circle(2,1,.2),
red(line(-3,1,2,1),line(-3,.99,2,.99),line(-3,1.01,2,1.01))

)}}}

And we count the blocks on the grid between them and we
count that there are 5 of them.

So the horizontal distance between (-3,1) and (2,1) is 5 units.

---------------------------------------------

(2) Horizontal distance from (-3,1) to y-axis.

Now we start at point (-3,1)

{{{drawing(400,400,-7,7,-7,7, grid(1), circle(-3,1,.2)



)}}}

and draw a red line over to the y-axis

{{{drawing(400,400,-7,7,-7,7, grid(1), circle(-3,1,.2),

red(line(-3,1,0,1))


)}}}

and count the blocks and see that thereare 3 of them.

Edwin</pre>