Equation of a Circle Investigation
Investigation into circles
What is the equation of a circle with:
Radius 1 centre the origin-
Radius 2 centre the origin-
Radius 3 centre the origin-
Radius 4 centre the origin-
Radius 5 centre the origin-
Radius r centre the origin-
Radius 2 centre (1, 0)-
Radius 3 centre (1, 2)-
Radius 4 centre (2, 3)-
Radius 5 centre (-2, -1)-
What is the equation of a circle with Radius r centre the origin.
What can you say about the relationship (x-a)^2+(y-b)^2=r^2 ?
Describe what the following equations represent.
x^2+y^2=9
x^2+y^2-25=0
(x-2)^2+y^2=9
(x+2)^2+(y-3)^2=9