Final answer:
The expressive quality of a line in writing is referred to as its Gesture. Gesture carries emotional and expressive content.
Explanation:
The expressive quality of a line in writing is referred to as its Gesture. Gesture, which is the line produced by the movement of the artist's hand or body, carries emotional and expressive content. For example, short, uneven staccato lines may convey impatience, while evenly drawn horizontal lines express calm.
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