The Pythagorean Theorem. Consider the right triangle including the two points and a third point having the same x coordinate as one and the same y coordinate as the other. Apply the Pythagorean theorem.
For (x1, y1) and (x2,y2): dist. = sqrt((x1-x2)2 + (y1-y2)2)
Chat with our AI personalities
When a line segment connecting two points is horizontal the length of the segment can be found by finding the absolute value of the difference in x-coordinates of the two points.
The slope of a line is the rise divided by the run. In other terms, if, X = the horizontal distance between two points on a line and Y = the vertical distance between the same points, then m = Y/X
Oh, dude, a horizontal distance is like the measurement between two points along the horizon. It's like how far something is from side to side, you know? So, if you're trying to figure out how wide your room is, you'd be measuring that horizontal distance. Cool, right?
ruler
If you know the end points then use the distance formula or simply use a ruler.