Answer:
( 3^2 + 4^2) B
Explanation:
The general equation of a circle is (x - a)^2 + (y - b)^2 = r^2, where the center is at (a , b) and the radius is r.
Now we have the center of the circle at (0,0). It passes through the point (3,4).
So the radius is sqrt ( 3^2 + 4^2)
=> sqrt ( 16 + 9)
=> sqrt 25
=> 5
Substituting the coordinates of the center (0,0) and the radius 5, we get (x - 0)^2 + (y - 0)^2 = 5^2
=> x^2 + y^2 = 25
The equation of the circle is x^2 + y^2 = 25