Question

What is the equation of the circle with center ___5, 2___ and radius ____4____? [Use different numbers] Explain each variable and number in the equation.

Answer 1

lol why dont u do it @ParthKohli xD

Answer 2

Okay!
So, the equation of a circle is:

\(\Large \color{MidnightBlue}{\Rightarrow (x - h)^2 + (y - b)^2 = r^2 }\)

(h,b) are the center co-ordinates.
r is the radius.

Answer 3

Can you do it now @ScarletChains ?

Answer 4

I hope so!! haha Thanks for the help!

Answer 5

:D:D

Answer 6

Okay, so @ParthKohli if h and b are center co-ordinates and r is the radius. x and y are.. just x and y? or do the stand for something else? (Sorry, guys, Geometry is NOT my thing!)

Answer 7

Haha lana...I asked the same thing

Answer 8

lol,
if u want the equation and u have the center and the radius, u keep x and y as they are,,,
but sometimes they give u
(x-2)^2+(y-3)^2=r^2 and they tell u that it passes through a point (2,1) for example
so find r ...
to do that u just substitute (2,1) in x and y and then find r ...
or they ask u to find the center,,,
but in ur question,,, x and y are just x and y

Answer 9

Thank you!!

Answer 10

:):)

Answer 11

Basically, x and y are the axis's

Answer 12

yeah :D

Answer 13

@ParthKohli and @lalaly so this is what I got.. I don't think I did it right!><

(x-h)^2 + (y-b)^2 = r^2
(x-5)^2 + (y-2)^2 = 4^2
(x-25) + (y-4) = 16
x + y – 29 = 16
x + y = 45

Answer 14

noo just stop after ur second step
the equation of the circle is
(x-5)^2 + (y-2)^2 =16

Answer 15

It's definitely official.. Geometry is not my calling!
Thank you for all of your helpppp!