Question

Write the equation of the circle with center (−3, 2) and (6, 4) a point on the circle.

Answer 1

A wok frying pan is shaped like a spherical bowl with handles. A bit of experimentation at home persuades a cook that a wok holds about 3 L if it is 9 cm deep and the sphere has a radius of 20 cm. To be​ sure, picture the wok as a solid of​ revolution, as shown in the​ figure, and calculate its volume with an integral. What is the real volume of the​ wok? ​(1L=1000cm^3​)

Answer 2

hello : 
let : w(-3,2)  , A(6,4)

 

an equation of the circle Center at the A(a,b) and ridus : r is :
(x-a)² +(y-b)² = r²
in this exercice : a =-3  and b = 2 
r = Aw
r² = (Aw)²
r² = (6+3)² +(4-2)² = 81+4=85
an equation of the circle that satisfies the stated conditions.
w(-3;2), passing through A(6, 4) is :  (x+3)² +(y-2)² = 85