Pronunciation: /græf/ ?
A graph is a visual
|Figure 1: Graph of the line y = 2x-1||
When we draw a graph, we are drawing a representation of a relationship such as
y = 2x - 1. A graph can help us understand and
interpret an algebraic relationship.
Types of Graphs
A number line is a one dimensional graph. Examples
of number lines include:
|Number line showing A=5.
|Number line showing B≤-3.
|Number line showing -5 ≤ C < 2.5.
|Number line showing D < 0 or D ≥ 3.
|Table 1: Examples of number lines.|
Graphs Using Cartesian Coordinates in 2 Dimensions
|Figure 1: Graph of y = x2-4.||
When graphing a relationship between two variables, one usually uses a 2-dimensional Cartesian coordinate system.
- graph. http://wordnet.princeton.edu/. WordNet. Princeton University. (Accessed: 2011-01-08). http://wordnetweb.princeton.edu/perl/webwn?s=graph&sub=Search+WordNet&o2=&o0=1&o7=&o5=&o1=1&o6=&o4=&o3=&h=.
- Graph. ams.org. Geometry Glossary. American Mathematical Society. (Accessed: 2010-02-05). http://www.ams.org/featurecolumn/archive/geometry-glossary.html.
- Hall, H. A.. A Short Introduction To Graphical Algebra, 4th ed.. Macmillan and Company, Ltd., 1907. (Accessed: 2010-02-08). http://www.archive.org/stream/shortintroductio029519mbp#page/n4/mode/1up.
- Bettinger, Alvin K., Englund, John A.. Algebra and Trigonometry, pp 146-172. International Textbook Company, January 1963. (Accessed: 2010-02-08). http://www.archive.org/stream/algebraandtrigon033520mbp#page/n163/mode/1up.
Cite this article as:
Graph. 2010-02-08. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/g/graph.html.
2010-02-08: Added "References" (McAdams, David.
2008-08-04: Added types of graphs (McAdams, David.
2008-02-18: Added caption to graph (McAdams, David.
2007-08-19: Initial version (McAdams, David.