Line -- from Wolfram MathWorld

A line is a straight one-dimensional figure having no thickness and extending infinitely in both directions. A line is sometimes called a straight line or, more archaically, a right line (Casey 1893), to emphasize that it has no "wiggles" anywhere along its length. While lines are intrinsically one-dimensional objects, they may be embedded in higher dimensional spaces. Harary (1994) called an edge of a graph a "line." A line is uniquely determined by two points, and the

433 Three-Dimensional shapes – from Wolfram MathWorld

Wolfram Math World: Sphere Unit Plan for 9th - 10th Grade

Line-Line Distance -- from Wolfram MathWorld

Solved A witch of Agnesi is any curve in a family of

Line Integrals with Pearson and Mathematica

Wolfram Math World: Math World: Geometric Construction Handout for 9th - 10th Grade

Least Squares Fitting -- from Wolfram MathWorld

Line -- from Wolfram MathWorld

Wolfram Mathworld: Gauss Jordan Elimination Handout for 9th - 10th Grade

Example: Line graph (

NormalLineThrough Wolfram Function Repository

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Contiguous USA Graph -- from Wolfram MathWorld