Question

If X and Y are two points on number line then the distance between them is represented by

Answer 1

Explanation:

Let the point X be represented as (x1, y1) and the point Y be (x2, y2). The distance between the two points is expressed as;

D² = (x2-x1)² - (x2-y2)²

Take the square root of both sides;

√D² = √(x2-x1)² - (x2-y2)²

D = √(x2-x1)² - (x2-y2)²

Also the distance between X and Y can be represented as D = |X-Y|