Viewing topic: Circle

See sub-topics for Circle ... >> Mathematics >> Geometry >> Circle

Highest Rated Sign

Video id: #2361 (enlarge)
Post date: 8/2/2012
Posted by: xa0s
Rating:
  • Currently 4.0/5 Stars.
  1 rating
See all signs (2)

Circle

  • Definition: Let (h, k) be a given point in the xy-plane and r > 0 a given positive real number. The circle of radius r centered at (h, k) is precisely all of the solutions (x,y) of the equation (x − h)^2 + (y − k)^2 = r^2; i.e., the circle is the graph of this equation, where h and k are the x- and y-coordinates of the center of the circle.

    Source: "Precalculus" by David H. Collingwood and K. David Prince at the University of Washington

  • Example: A circle centered at the origin with a radius of 4 would be notated as: (x-0)^2 + (y-0)^2 = 16 Another circle centered at the point (6,2) with a radius of 2 would be notated as: (x-6)^2 + (y-2)^2 = 4

  • Listed under: Algebra, Geometry

    Other highly-rated signs for "Circle" (more...)

    • Currently 3.0/5 Stars.
    Enlarge
  • There are no comments for this topic.