Question 636264
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
x^2+y^2=4   Circle: C(0,0),  r = 2
 x-intercepts (± 2,0)
y-intercepts  (0,± 2)
{{{drawing(300,300,   -6, 6, -6, 6,   grid(1),
circle(0, 0,2.0),
circle(0, 0,0.2),
graph( 300, 300, -6, 6, -6, 6))}}}