Answer:
What is the formula for distance of a line?
We can rewrite the Pythagorean theorem as d=√((x_2-x_1)²+(y_2-y_1)²) to find the distance between any two points.
Example
What is the distance between 2 and 5 on a number line?
The distance between -2 and -5 on the number line is 3 units