Question

A circle is shown on the coordinate plane below.



What is the equation of this circle?

x2 + (y + 1)2 = 4

x2 + (y – 1)2 = 2

x2 + (y + 1)2 = 2

x2 + (y – 1)2 = 4

Answer 1

it is of center (0,1) and radius 2

Answer 2

so the equation would be
x2 + (y – 1)2 = 4

Answer 3

thanks

Answer 4

yw :)