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Reciprocal Functions - GCSE Maths Definition

Reviewed by: Dan Finlay

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In GCSE Mathematics, a reciprocal function would be of the form fopen parentheses x close parentheses equals k over x, where x ≠ 0, and k is a constant.

The graph of a reciprocal function is distinctive and important in mathematics - the graph of y equals 1 over x consists of two separate curves - one in the first quadrant, one in the third. The graph does not intersect either the x- nor y-axis. The x and y-axis are asymptotes to the curve - lines the curve approaches, but never intersects.

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Dan Finlay

Reviewer: Dan Finlay

Expertise: Maths Subject Lead

Dan graduated from the University of Oxford with a First class degree in mathematics. As well as teaching maths for over 8 years, Dan has marked a range of exams for Edexcel, tutored students and taught A Level Accounting. Dan has a keen interest in statistics and probability and their real-life applications.

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