Question

write the standard equation for the circle that passes through (-4, 0) with center (-1.-4)

Answer 1

Can you find the radius?

Answer 2

25

Answer 3

The radius is the distance between the center and a point on the circle...

Answer 4

No that's the given radius lol

Answer 5

Every answer ends with =25. I just need to find the equation

Answer 6

You have
\[(x+1)^{2}+(y+4)^{2} = r^2\]
Plug in the given point (-4, 0) into the equation to solve for r.

Answer 7

Thats the idea

Answer 8

Answer B, I suppose...?

Answer 9

I'm not too sure, I thought it was b at first

Answer 10

Substitute the centre of the circle (-1, -4) into the general equation for a circle

Answer 11

Yes, you're correct. Thanks. Can you help me with one more please?

Answer 12

answer b

Answer 13

Thank you