❖ Learn how to find the distance between two points in \(1D\) in this beginner-friendly coordinate geometry lesson!

We explain the distance formula in one dimension, why it works, and how to apply it to both positive and negative coordinates all with clear step-by-step examples.

🎯 Key concepts covered:

– Distance formula in \(1D\):

$$d = |P_2 – P_1|$$

– Why squaring and taking the square root always gives a positive value

– How absolute value represents distance

– Examples with both positive and negative coordinates

– How a number line can be drawn horizontally, vertically, or diagonally

✔️ Important points:

✅ Distance is always positive

✅ In \(1D\), you only need one value to locate a point

✅ The distance formula works regardless of number line orientation

✔️ What this lesson includes:

– Simple explanation of the distance formula in \(1D\)

– Step-by-step worked examples

– Real-life analogy using an elevator (vertical number line)

– Visualizing the number line in different directions

🎯 Whether you’re a student, teacher, or math enthusiast, this lesson will help you understand how to find the distance between two points in one dimension and apply the distance formula with confidence!

✨ Watch next:

🔹 Distance between Two Points in \(2D\)

🔹 Distance between Two Points in \(3D\)