Circle with centre (-g,-f)

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<blockquote class="wp-embedded-content"><a href="http://www.projectmaths.ie/geogebra/circle-with-centre-g-f/">Circle with centre (-g,-f)</a></blockquote>
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</script><iframe sandbox="allow-scripts" security="restricted" src="http://www.projectmaths.ie/geogebra/circle-with-centre-g-f/embed/" width="600" height="400" title="&#8220;Circle with centre (-g,-f)&#8221; &#8212; Project Maths" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe>
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