Answer: The radius is 11(14−3)and the coordinates of the centre is (7,3)
Step-by-step explanation:Opening up the equation,(x+7)2+(y−3)2=121
x2+14
x+49+y2−6
y+9=121
y2−6
y=63−x2+14
Find the x-intercepts, and the midpoint to find x-line of symmetry,
When y=0,x2 −14
x − 63 = 0
x = 17.58300524 or x = −3.58300524
17.58300524 −3.58300524
2=7
Find the highest and lowest point and midpoint,
When x=7,y2−6
y−112 = 0
y=14 or y=−8
14−8/2=3
Hence, the radius is 11(14−3)and the coordinates of the centre is (7,3)
