# Descartes Tangent Lines

by William Barnier (Sonoma State University) and James Jantosciak (Brooklyn College)

College Mathematics Journal
January, 2007

Subject classification(s): Single Variable Calculus | Calculus
Applicable Course(s): 3.1 Mainstream Calculus I | 3.0 Calculus

Given any positive integer $$n$$, find polynomial curves that have exactly $$n$$ tangent lines which intersect the curve exactly once.

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