Question

PLEASE HELP - What is the distance between points (12, 4) and (18, –1)? Round to the nearest tenth.

Answer 1

If you think of the distance horizontally and the distance vertically as the sides of a triangle, the third side is the distance you are looking for. So by pythagoras thereom, we know a^2 + b^2 = c^2.

a = x2-x1
b= y2 - y1

so c=\[\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}\]

and c would be your distance