Question

the center of a circular sunflower with a diameter of 4 centimeters is (-2,1). Which equation represents the sunflower?

Answer 1

The standard equation the circle is given by:
 (x-xo) ^ 2 + (y-yo) ^ 2 = r ^ 2
 Where,
 (xo, yo): coordinates of the center of the circle
 r: radius of the circle
 Substituting values we have:
 (x - (- 2)) ^ 2 + (y-1) ^ 2 = (4/2) ^ 2
 Rewriting:
 (x + 2) ^ 2 + (y-1) ^ 2 = 4
 Answer:
 An equation that represents the sunflower is:
 (x + 2) ^ 2 + (y-1) ^ 2 = 4