Question

Which of the following equations correctly represents a circle centered at the origin with a radius of 5? A. x2 + y2 = 25
B. x2 + y2 = 5
C. (x - 5)2 + y2 = 25
D. (x - 5)2 + (y - 5)2 =5

Answer 1

are you going to post the choices

Answer 2

The general equation for a circle is:
\[(x-h)^2+(y-k)^2=r^2\]
Where h and k represent the coordinates of the center. If it's the origin, it simplifies to:
\[x^2+y^2=r^2\]

Answer 3

d?

Answer 4

remeber it's equal to r^2, so if r=5...

Answer 5

it's not d.

Answer 6

A