Question

Need Help!
What is the general form of the equation of a circle with its center at (-2, 1) and passing through (-4, 1)?

Answer 1

well the general form is

\[(x - h)^2 + (y - k)^2 = r^2\]

where (h, k) is the centre... and r = radius

so substitute your centre values into the equation

when you have an equation substitute the other point and then solve for r^2

hope it helps

Answer 2

thank you