Question

please help loves
Write the equation of the circle with center (-2, -5) and containing the point (-10, -20)

Answer 1

To write the equation of the circle, you need the center of the circle, the radius, and the format for writing the circle equation.

Answer 2

Find the distance between the two points (-2, -5) and (-10, -20) to get the radius.
Post that and then we'll write the circle equation.

@deszbra

Answer 3

i used the distance formula and it gave me a number that didnt work

Answer 4

@Directrix

Answer 5

HI!!!

Answer 6

since the center is \((-2,-5)\) you know it has to look like
\[(x+2)^2+(y+)^2=r^2\] you just need \(r^2\)

Answer 7

use the square of the distance formula
\[(-2+10)^2+(-5+20)^2\]

Answer 8

you can almost do it in your head:\[8^2+15^2=64+225=...\]

Answer 9

thank you