Pronunciation: /ˈwaɪ ˈɪn.tərˌsɛpt/ Explain

A y-intercept is a point at which a graph crosses the y-axis. Any point on the y-axis has an x value of 0. A graph of a function has only one y-intercept (see Vertical Line Test).

Click on the blue curve and drag it to change the figure.

Manipulative 1 - Y-Intercept Created with GeoGebra.


  1. McAdams, David E.. All Math Words Dictionary, y-intercept. 2nd Classroom edition 20150108-4799968. pg 191. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. y-intercept. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/y/yintercept.html.

Image Credits

Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
12/17/2018: Removed broken links, updated license, implemented new markup, implemented new version of GeoGebra. (McAdams, David E.)
8/7/2018: Changed vocabulary links to WORDLINK format. (McAdams, David E.)
9/16/2008: Changed image to manipulative. (McAdams, David E.)
7/12/2007: Initial version. (McAdams, David E.)

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