Question

Find the equation of circle when the coordinates of the end points of diameter are (3,4) and (-3,-4)

Answer 1

Diameter will be squrt( (3+3)^2 + (4+4)^2)

= squrt (6^2+8^2) = squrt (100) = 10.

Radius =10/2 =5

Centre point will be at (3-3)/2 and (4-4)/2

Centre at (0,0)

Equation x^2+y^2 = 5^2

X^2 + Y^2 = 25.