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What is the distance formula?
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Step 1:
I'll solve this by providing a comprehensive explanation of the distance formula with proper LaTeX formatting:

Step 2:
: Understanding the Distance Formula

The distance formula calculates the length between two points in a coordinate system. It is derived from the Pythagorean theorem and applies to two-dimensional (2D) and three-dimensional (3D) spaces.

Step 3:
: 2D Distance Formula

d = \sqrt{(x_2 - x_1)^{2} + (y_2 - y_1)^{2}}

Step 4:
: 3D Distance Formula

d = \sqrt{(x_2 - x_1)^{2} + (y_2 - y_1)^{2} + (z_2 - z_1)^{2}}

Final Answer

The distance formula calculates the straight-line distance between two points by taking the square root of the sum of squared coordinate differences.