) The original point is (−1,2) The circle equation is x2+y2−2x+4y+c=0 Centre of the circle is (1,−2) The original point is (−1,2) ‌ The distance ‌‌=√(−1−1)2+(2−(−2))2 ‌=√4+16=√20 The centre of the circle is (1,−2) The inverse point is (‌