A line is a mark that is created by a point moving across a surface.

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What is a line?

A horizontal line is a straight line that is drawn from right to left or left to right (as opposed to down-up or up-down).

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What is a horizontal line?

A vertical line is always a line that runs from top to bottom, or, from bottom to top.

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What is a vertical line?

A diagonal is made out of a straight line that's set at an angle instead of straight up or across.

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What is a diagonal line?

Parallel lines can be defined as two lines in the same plane that are at equal distances from each other and never meet.​

What is are parallel lines?

Perpendicular lines are lines that intersect at a 90 degrees angle.

What is are perpendicular lines?

When any two lines meet at one common point, they are called intersecting lines.

What is are intersecting lines?

Lines in Visual Arts

Descriptive lines are lines that help us understand what we are seeing.

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What are descriptive lines?

Implied lines are lines that suggest an edge rather than clearly defining one.

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What are implied lines?

Expressive lines add motion and emotion.

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What are expressive lines?

An outline is a line that surrounds a shape.

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What are outlines?

Artists use many thin, closely spaced, parallel lines called hatching.

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What is hatching?

Hatching lines that are crossed which make a more solid shadow, are called cross-hatching.

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What is cross-hatching?

Stippling is the creation of a pattern simulating varying degrees of solidity or shading by using small dots.

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What is stippling?