Co-ordinate geomentry find the distance between the following pair (2,3) (4,1)

2,3-4,1 to do this, find the difference between the height and the width, turning it into 2,3. the rest is pythagoras, a^2+b^2=c^2
so
the square root of (2^2+3^2)= 3.60555513, etc...
if you dont understand this, just use the answer

Get a sheet of graph paper. draw a line vertical and draw another line in the center perpendicular to the vertical. the meeting point is 0,0 - the upper right quadrant is X-Y. the bottom right quadrant is Y -X, the left bottom is -Y -X and what's left is -X +Y.
take your first coordinate. count up 2 and to the right 3. make a point. second coordinate - count up 4 and over right 1, make a point. now join the two points with a straight line. measure the distance between the points.