Question

The D on of family of circles with radius = 5 & and center on y = 2 is __.

Answer 1

$(x-x-(y-2)\frac{dy}{dx}{)}^2+(y-2{)}^2=5^2$
$(y-2{)}^2{\left(\frac{dy}{dx}\right)}^2+(y-2{)}^2=5^2$
$(y-x{)}^2({\left(\frac{dy}{dx}\right)}^2+1)=0$