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in this video weamp;#39;re going to learn about the equation of a circle as usual there are some exam questions in the videoamp;#39;s description that you can try afterwards take the equation x squared plus y squared equals r squared this corresponds to a circle where the center is 0 0 or the origin and a radius r for example if we had this circle here the equation would be x squared plus y squared equals three squared since the radius is three and of course three squared is just nine now what about if we move the circle so the center is in a different place what would happen to the equation so in this one weamp;#39;ve now got a center which is 2 3 but the radius is still the same itamp;#39;s still 3. now since the radius is still the same the right hand side of this equation doesnamp;#39;t change so it still equals 3 squared or equals 9 but the left hand side does this circle would have equation x minus 2 all squared plus y minus 3 or squared equals 9. notice the x coordi
