Question

Circles with Coordinates

Answer 1

HI!!

Answer 2

what about them?

Answer 3

complete the square for x and y

Answer 4

\[x^2-16x+64+y^2-18y+81=-120+64+81\]

Answer 5

I believe its C

Answer 6

\[(x-8)^2+(y-9)^2=25\]

Answer 7

its is not

Answer 8

try again

Answer 9

look at the equation and try again

Answer 10

Now im just kinda confused

Answer 11

Circles are shown in the form \[(x-h)^2+(y-k)^2=r^2\] where \[(h, k)\] is the center and \[r\] is the radius

Answer 12

now what do you think the center is?

Answer 13

Oh i see now its D What is the center of the circle given by the equation below?
x2 - 16x + y2 - 18y = -129
----
Complete the square on the x and on the y terms:
x^2 -16x + 64 + y^2 -18y + 81 = -129+64+81

Answer 14

(x-8)^2 + (y-9)^2 = 16
----
Center: (8,9)
radius: sqrt(16) = 4

Answer 15

no, raidus is sqrt(25) = 5, but yes center is corret

Answer 16

medal fan plz! ;)