Distance between points (-1, -1) and (1, 2)

Given Coordinates: x₁ = -1  y₁ = -1,  x₂ = 1  y₂ = 2
Distance Formula: d = √(x₂ − x₁)² + (y₂ − y₁)²
Substitute the given coordinates into the Distance Formula and Simplify:
d = √(1 − (-1))² + (2 − (-1))²
d = √(1 + 1)² + (2 + 1)²
d = √2² + 3²
d = √4 + 9
d = √13
Therefore, the distance between the points (-1, -1) and (1, 2) is equal to √13
Note: As a decimal number, √13 ≈ 3.605551275464