Question

What is the equation of this circle?

Answer 1

(x + 1)2 + y2 = 2

(x – 1)2 + y2 = 4

(x + 1)2 + y2 = 4

(x – 1)2 + y2 = 2

Answer 2

centre is (-1, 0) and r = 2

the general form of a circle is

(x -h)^2 + (y - k)^2 = r^2

centre (h, k) radius r

hope this helps

Answer 3

is it (x – 1)2 + y2 = 2 @campbell_st

Answer 4

remember if you have r the equation uses r^2

Answer 5

(x – 1)2 + y2 = 4?

Answer 6

the equation is

(x - (-1))^2 + (y - 0)^2 = 2^2 or (x +1)^2 + y^2 = 4

Answer 7

thnks

Answer 8

hope it helps