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Equation of a circle w/ center at the origin

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Equation of a circle w/ center at the origin

Postby andrei123 » Wed Dec 14, 2011 9:54 pm

Find the equation of the circle at the origin and radius 2.5. Draw the circle.
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Re: Equation of a circle w/ center at the origin

Postby Math Tutor » Thu Dec 15, 2011 4:35 am

The equation of the circle is:

[tex]x^2 + y^2 = 2.5^2[/tex]
or
[tex]x^2 + y^2 = 6.25[/tex]

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Re: Equation of a circle w/ center at the origin

Postby Math Tutor » Thu Dec 15, 2011 4:39 am

You can use Geonext to draw the circle.
It is a java applet.

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Re: Equation of a circle w/ center at the origin

Postby leesajohnson » Wed Nov 23, 2016 6:27 am

Equation of the circle :
=> x²+y²=2.5²

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