Question

Which of the following is the equation of a circle with center (5, -2) and radius of 6?

Answer 1

a) (x - 5)2 + (y + 2)2 = 36

b) (x - 5)2 + (y + 2)2 = 6

c) (x + 5)2 + (y - 2)2 = 6

d) (x + 5)2 + (y - 2)2 = 36

Answer 2

the general equation of a circle can be written

(x - a)^2 + (y - b)^2 = r^2

where (a,b) = center and r = radius

Answer 3

so if you compare each of your options with this equation you should see which one is correct

Answer 4

note if r = 6 then r^2 = 36

Answer 5

i think it's a)

Answer 6

right

(x - 5)^2 ( ( x - (-2)) = 6^2

Answer 7

oh okay i get it now!! thank you for helping! uvu

Answer 8

(x - 5)^2 + ( x - (-2)) = 6^2

Answer 9

yw