What is the distance between the points (21 , 13) and (3 , 13) in the coordinate plane?

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula:

Step-by-step explanation:

Step 1: Define

Identify

Point (21, 13)

Point (3, 13)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]:                                                         [√Radical] (Parenthesis) Subtract:                                                                   [√Radical] Evaluate exponents:                                                                       [√Radical] Add:                                                                                                 [√Radical] Evaluate: