We know that X²+y²=9 -------> X²+y²=3² is the equation of a circle with center (0,0) and radius r=3 units so <span>the translation of four units to the right and three units down is equals to move the center (0,0)--------> (0+4,0-3)------> (4.-3)
the new center of the circle is (4,-3) the new equation is (x-4)</span>²+(y+3)²=3²