Question

what is the standard form of the equation of the circle with center (3,-2) and a point on the circle
(-1,1)

Answer 1

can u find the distance between those 2 points ?
that would be the radius r

Answer 2

using the distance formula

Answer 3

yes

Answer 4

i got 13

Answer 5

how?

Answer 6

3--1 = 4 , 4^2=16
-2-1=-3, -3^2-9

Answer 7

-3^2=9***

Answer 8

i didnt square the 4

Answer 9

so its 25

Answer 10

sqrt 25 =...?

Answer 11

5

Answer 12

you have centre , u have radius r=5,
can you find the equation now?

Answer 13

is it (x+1)^2+(y-1)^2=5

Answer 14

the center is 3,-2
not -1,1

Answer 15

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

Answer 16

h=3,k=-2

Answer 17

so its (x-3)^2 and (y+2)^2= 25

Answer 18

yes
+ instead of and

Answer 19

thanks

Answer 20

welcome ^_^