Re: 2 Unit Revising Marathon HSC '10
y^2-6y+9=x^2-6x+9+y^2-8y+16
2y=(x-3)^2+7
abs(y-3)=sqrt((x-3)^2+(y-4)^2)
Find the locus of the points that move equidistant from the line y = 3 and the point (3,4)
y^2-6y+9=x^2-6x+9+y^2-8y+16
2y=(x-3)^2+7