Question

Find the equation of the circle with given center and radius r. (1, -3) and radius 5

Answer 1

find the cartesian equation

Answer 2

huh?

Answer 3

center (x)/ radius (r)

Answer 4

so the answer is 1/5?

Answer 5

(x-1)^2+(y+3)^2=(5)^2

Answer 6

how will that be able to equal to 0 then?

Answer 7

it will be able to equal 0 if you subtract 25 from both sides.

Answer 8

it does not need to be..

Answer 9

Unless, of course, the instructor required it.

Answer 10

Cinar posted what is known as standard form of a circle.