Find the equation for the circle with center (1,2) and passing through (-4,-3).

Question

Write the equation for the circle.

Answer 1

(x-1)^2+(y-2)^2 = r^2

(-4-1)^2 + (-3-2)^2 = r^2

that should get you under way.

Answer 2

radius=sqrt(5^2 + 5^2)=5sqrt2

(y-2)^2 + (x-1)^2=(5sqrt2)^2