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ERIC Number: EJ853793
Record Type: Journal
Publication Date: 2009
Pages: 4
Abstractor: ERIC
Reference Count: 2
ISSN: ISSN-0819-4564
Intersection of the Exponential and Logarithmic Curves
Boukas, Andreas; Valahas, Theodoros
Australian Senior Mathematics Journal, v23 n1 p5-8 2009
The study of the number of intersection points of y = a[superscript x] and y = log[subscript a]x can be an interesting topic to present in a single-variable calculus class. In this article, the authors present a classroom presentation outline involving the basic algebra and the elementary calculus of the exponential and logarithmic functions. The proofs are given either in a "forward" manner or by contradiction. (Contains 2 figures.)
Australian Association of Mathematics Teachers (AAMT). GPO Box 1729, Adelaide 5001, South Australia. Tel: +61-8-8363-0288; Fax: +61-8-8362-9288; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A