Question

Find the equation of a circle that has its center at (-4, 3) and has a radius of 5.

(x + 4) 2 + (y - 3) 2 = 25
(x - 4) 2 + (y - 3) 2 = 25
(x + 4) 2 + (y + 3) 2 = 25
(x - 4) 2 + (y + 3) 2 = 25

Answer 1

\[\huge\rm (x-h)^2 + (y-k)^2= r^2\]
standard form equation of the circle
where (h,k) is the center
and r is radius

Answer 2

so what do I substitute for h and k?

Answer 3

(h,k) is the center so given center is (-4,3) that's what you have to substitute for (h,k) :-)

Answer 4

so -4 is h and 3 is k?

Answer 5

yes right

Answer 6

so the answer is a?

Answer 7

yes right